Writeup Exploits

66,871 exploits tracked across all sources.

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CVE-2026-27736 WRITEUP MEDIUM
BigBlueButton 3.x <3.0.20 - Open Redirect
BigBlueButton is an open-source virtual classroom. In versions on the 3.x branch prior to 3.0.20, the string received with errorRedirectUrl lacks validation, using it directly in the respondWithRedirect function leads to an Open Redirect vulnerability. BigBlueButton 3.0.20 patches the issue. No known workarounds are available.
CVSS 6.1
CVE-2026-27738 WRITEUP MEDIUM
Angular SSR <19.2.21/20.3.17/21.1.5 - Open Redirect
The Angular SSR is a server-rise rendering tool for Angular applications. An Open Redirect vulnerability exists in the internal URL processing logic in versions on the 19.x branch prior to 19.2.21, the 20.x branch prior to 20.3.17, and the 21.x branch prior to 21.1.5 and 21.2.0-rc.1. The logic normalizes URL segments by stripping leading slashes; however, it only removes a single leading slash. When an Angular SSR application is deployed behind a proxy that passes the `X-Forwarded-Prefix` header, an attacker can provide a value starting with three slashes. This vulnerability allows attackers to conduct large-scale phishing and SEO hijacking. In order to be vulnerable, the application must use Angular SSR, the application must have routes that perform internal redirects, the infrastructure (Reverse Proxy/CDN) must pass the `X-Forwarded-Prefix` header to the SSR process without sanitization, and the cache must not vary on the `X-Forwarded-Prefix` header. Versions 21.2.0-rc.1, 21.1.5, 20.3.17, and 19.2.21 contain a patch. Until the patch is applied, developers should sanitize the `X-Forwarded-Prefix` header in their`server.ts` before the Angular engine processes the request.
CVE-2026-27794 WRITEUP MEDIUM
LangGraph Checkpoint <4.0.0 - Deserialization
LangGraph Checkpoint defines the base interface for LangGraph checkpointers. Prior to version 4.0.0, a Remote Code Execution vulnerability exists in LangGraph's caching layer when applications enable cache backends that inherit from `BaseCache` and opt nodes into caching via `CachePolicy`. Prior to `langgraph-checkpoint` 4.0.0, `BaseCache` defaults to `JsonPlusSerializer(pickle_fallback=True)`. When msgpack serialization fails, cached values can be deserialized via `pickle.loads(...)`. Caching is not enabled by default. Applications are affected only when the application explicitly enables a cache backend (for example by passing `cache=...` to `StateGraph.compile(...)` or otherwise configuring a `BaseCache` implementation), one or more nodes opt into caching via `CachePolicy`, and the attacker can write to the cache backend (for example a network-accessible Redis instance with weak/no auth, shared cache infrastructure reachable by other tenants/services, or a writable SQLite cache file). An attacker must be able to write attacker-controlled bytes into the cache backend such that the LangGraph process later reads and deserializes them. This typically requires write access to a networked cache (for example a network-accessible Redis instance with weak/no auth or shared cache infrastructure reachable by other tenants/services) or write access to local cache storage (for example a writable SQLite cache file via permissive file permissions or a shared writable volume). Because exploitation requires write access to the cache storage layer, this is a post-compromise / post-access escalation vector. LangGraph Checkpoint 4.0.0 patches the issue.
CVSS 6.6
CVE-2026-27795 WRITEUP MEDIUM
langchainjs < 1.1.8 - Server-Side Request Forgery via RecursiveUrlLoader Redirect Bypass
LangChain is a framework for building LLM-powered applications. Prior to version 1.1.8, a redirect-based Server-Side Request Forgery (SSRF) bypass exists in `RecursiveUrlLoader` in `@langchain/community`. The loader validates the initial URL but allows the underlying fetch to follow redirects automatically, which permits a transition from a safe public URL to an internal or metadata endpoint without revalidation. This is a bypass of the SSRF protections introduced in 1.1.14 (CVE-2026-26019). Users should upgrade to `@langchain/community` 1.1.18, which validates every redirect hop by disabling automatic redirects and re-validating `Location` targets before following them. In this version, automatic redirects are disabled (`redirect: "manual"`), each 3xx `Location` is resolved and validated with `validateSafeUrl()` before the next request, and a maximum redirect limit prevents infinite loops.
CVSS 4.1
CVE-2026-27950 WRITEUP HIGH
FreeRDP < 3.23.0 - Use-After-Free in SDL2 Pointer Implementation
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, the fix for the heap-use-after-free described in CVE-2026-24680 is incomplete. While the vulnerable execution flow referenced in the advisory exists in the SDL2 implementation, the fix appears to have been applied only to the SDL3 code path. In the SDL2 implementation, the pointer is not nulled after free. This creates a situation where the advisory suggests the vulnerability is fully resolved, while builds or environments still using SDL2 may retain the vulnerable logic. A complete fix is available in version 3.23.0.
CVSS 7.5
CVE-2026-27951 WRITEUP MEDIUM
FreeRDP < 3.23.0 - Denial of Service via Stream_EnsureCapacity
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, the function `Stream_EnsureCapacity` can create an endless blocking loop. This may affect all client and server implementations using `FreeRDP`. For practical exploitation this will only work on 32bit systems where the available physical memory is `>= SIZE_MAX`. Version 3.23.0 contains a patch. No known workarounds are available.
CVSS 5.3
CVE-2026-3189 WRITEUP LOW
feiyuchuixue sz-boot-parent <=1.3.2-beta - SSRF
A weakness has been identified in feiyuchuixue sz-boot-parent up to 1.3.2-beta. This vulnerability affects unknown code of the file /api/admin/common/files/download. Executing a manipulation of the argument url can lead to server-side request forgery. The attack can be executed remotely. Attacks of this nature are highly complex. It is stated that the exploitability is difficult. Upgrading to version 1.3.3-beta is able to resolve this issue. This patch is called aefaabfd7527188bfba3c8c9eee17c316d094802. Upgrading the affected component is advised. The project was informed beforehand and acted very professional: "We have added a URL protocol whitelist validation to the file download interface, allowing only http and https protocols."
CVSS 3.1
CVE-2026-3189 WRITEUP LOW
feiyuchuixue sz-boot-parent <=1.3.2-beta - SSRF
A weakness has been identified in feiyuchuixue sz-boot-parent up to 1.3.2-beta. This vulnerability affects unknown code of the file /api/admin/common/files/download. Executing a manipulation of the argument url can lead to server-side request forgery. The attack can be executed remotely. Attacks of this nature are highly complex. It is stated that the exploitability is difficult. Upgrading to version 1.3.3-beta is able to resolve this issue. This patch is called aefaabfd7527188bfba3c8c9eee17c316d094802. Upgrading the affected component is advised. The project was informed beforehand and acted very professional: "We have added a URL protocol whitelist validation to the file download interface, allowing only http and https protocols."
CVSS 3.1
CVE-2026-3189 WRITEUP LOW
feiyuchuixue sz-boot-parent <=1.3.2-beta - SSRF
A weakness has been identified in feiyuchuixue sz-boot-parent up to 1.3.2-beta. This vulnerability affects unknown code of the file /api/admin/common/files/download. Executing a manipulation of the argument url can lead to server-side request forgery. The attack can be executed remotely. Attacks of this nature are highly complex. It is stated that the exploitability is difficult. Upgrading to version 1.3.3-beta is able to resolve this issue. This patch is called aefaabfd7527188bfba3c8c9eee17c316d094802. Upgrading the affected component is advised. The project was informed beforehand and acted very professional: "We have added a URL protocol whitelist validation to the file download interface, allowing only http and https protocols."
CVSS 3.1
CVE-2026-3189 WRITEUP LOW
feiyuchuixue sz-boot-parent <=1.3.2-beta - SSRF
A weakness has been identified in feiyuchuixue sz-boot-parent up to 1.3.2-beta. This vulnerability affects unknown code of the file /api/admin/common/files/download. Executing a manipulation of the argument url can lead to server-side request forgery. The attack can be executed remotely. Attacks of this nature are highly complex. It is stated that the exploitability is difficult. Upgrading to version 1.3.3-beta is able to resolve this issue. This patch is called aefaabfd7527188bfba3c8c9eee17c316d094802. Upgrading the affected component is advised. The project was informed beforehand and acted very professional: "We have added a URL protocol whitelist validation to the file download interface, allowing only http and https protocols."
CVSS 3.1
CVE-2026-3192 WRITEUP MEDIUM
Chia Blockchain 2.1.0 - Auth Bypass
A security vulnerability has been detected in Chia Blockchain 2.1.0. This issue affects the function _authenticate of the file rpc_server_base.py of the component RPC Credential Handler. The manipulation leads to improper authentication. The attack is possible to be carried out remotely. The attack is considered to have high complexity. The exploitability is assessed as difficult. The exploit has been disclosed publicly and may be used. The vendor was informed early via email. A separate report via bugbounty was rejected with the reason "This is by design. The user is responsible for host security".
CVSS 5.6
CVE-2026-3193 WRITEUP LOW
Chia Blockchain 2.1.0 - Cross-Site Request Forgery via /send_transaction
A vulnerability was detected in Chia Blockchain 2.1.0. Impacted is an unknown function of the file /send_transaction. The manipulation results in cross-site request forgery. The attack may be performed from remote. The attack requires a high level of complexity. The exploitability is considered difficult. The exploit is now public and may be used. The vendor was informed early via email. A separate report via bugbounty was rejected with the reason "This is by design. The user is responsible for host security".
CVSS 3.1
CVE-2026-3194 WRITEUP MEDIUM
Chia Blockchain 2.1.0 - Auth Bypass
A flaw has been found in Chia Blockchain 2.1.0. The affected element is the function send_transaction/get_private_key of the component RPC Server Master Passphrase Handler. This manipulation causes missing authentication. The attack can only be executed locally. The attack's complexity is rated as high. The exploitability is described as difficult. The exploit has been published and may be used. The vendor was informed early via email. A separate report via bugbounty was rejected with the reason "This is by design. The user is responsible for host security".
CVSS 4.5
CVE-2026-3200 WRITEUP HIGH
z-9527 admin 1.0/2.0 - SQL Injection
A vulnerability was identified in z-9527 admin 1.0/2.0. The affected element is the function checkName/register/login/getUser/getUsers of the file /server/controller/user.js. The manipulation leads to sql injection. The attack can be initiated remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
CVSS 7.3
CVE-2026-3200 WRITEUP HIGH
z-9527 admin 1.0/2.0 - SQL Injection
A vulnerability was identified in z-9527 admin 1.0/2.0. The affected element is the function checkName/register/login/getUser/getUsers of the file /server/controller/user.js. The manipulation leads to sql injection. The attack can be initiated remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
CVSS 7.3
CVE-2025-1242 WRITEUP CRITICAL
Gardyn Home Kit - Use of Hard-coded Credentials
The administrative credentials can be extracted through application API responses, mobile application reverse engineering, and device firmware reverse engineering. The exposure may result in an attacker gaining full administrative access to the Gardyn IoT Hub exposing connected devices to malicious control.
CVSS 9.1
CVE-2025-50180 WRITEUP HIGH
esm.sh 136 - Full-Response Server-Side Request Forgery
esm.sh is a no-build content delivery network (CDN) for web development. In version 136, esm.sh is vulnerable to a full-response SSRF, allowing an attacker to retrieve information from internal websites through the vulnerability. Version 137 fixes the vulnerability.
CVSS 7.5
CVE-2025-62878 WRITEUP CRITICAL
Rancher local-path-provisioner < 0.0.34 - Path Traversal via pathPattern Parameter
A malicious user can manipulate the parameters.pathPattern to create PersistentVolumes in arbitrary locations on the host node, potentially overwriting sensitive files or gaining access to unintended directories.
CVSS 9.9
CVE-2026-22866 WRITEUP HIGH
Ethereum Name Service (ENS) <=1.6.2 - Auth Bypass
Ethereum Name Service (ENS) is a distributed, open, and extensible naming system based on the Ethereum blockchain. In versions 1.6.2 and prior, the `RSASHA256Algorithm` and `RSASHA1Algorithm` contracts fail to validate PKCS#1 v1.5 padding structure when verifying RSA signatures. The contracts only check if the last 32 (or 20) bytes of the decrypted signature match the expected hash. This enables Bleichenbacher's 2006 signature forgery attack against DNS zones using RSA keys with low public exponents (e=3). Two ENS-supported TLDs (.cc and .name) use e=3 for their Key Signing Keys, allowing any domain under these TLDs to be fraudulently claimed on ENS without DNS ownership. Apatch was merged at commit c76c5ad0dc9de1c966443bd946fafc6351f87587. Possible workarounds include deploying the patched contracts and pointing DNSSECImpl.setAlgorithm to the deployed contract.
CVSS 7.5
CVE-2026-22866 WRITEUP HIGH
Ethereum Name Service (ENS) <=1.6.2 - Auth Bypass
Ethereum Name Service (ENS) is a distributed, open, and extensible naming system based on the Ethereum blockchain. In versions 1.6.2 and prior, the `RSASHA256Algorithm` and `RSASHA1Algorithm` contracts fail to validate PKCS#1 v1.5 padding structure when verifying RSA signatures. The contracts only check if the last 32 (or 20) bytes of the decrypted signature match the expected hash. This enables Bleichenbacher's 2006 signature forgery attack against DNS zones using RSA keys with low public exponents (e=3). Two ENS-supported TLDs (.cc and .name) use e=3 for their Key Signing Keys, allowing any domain under these TLDs to be fraudulently claimed on ENS without DNS ownership. Apatch was merged at commit c76c5ad0dc9de1c966443bd946fafc6351f87587. Possible workarounds include deploying the patched contracts and pointing DNSSECImpl.setAlgorithm to the deployed contract.
CVSS 7.5
CVE-2026-27691 WRITEUP MEDIUM
iccDEV <=2.3.1.4 - Memory Corruption
iccDEV provides a set of libraries and tools for working with ICC color management profiles. In versions up to and including 2.3.1.4, signed integer overflow in iccFromCube.cpp during multiplication triggers undefined behavior, potentially causing crashes or incorrect ICC profile generation when processing crafted/large cube inputs. Commit 43ae18dd69fc70190d3632a18a3af2f3da1e052a fixes the issue. No known workarounds are available.
CVSS 6.2
CVE-2026-27692 WRITEUP HIGH
iccDEV <=2.3.1.4 - Memory Corruption
iccDEV provides a set of libraries and tools for working with ICC color management profiles. In versions up to and including 2.3.1.4, heap-buffer-overflow read occurs during CIccTagTextDescription::Release() when strlen() reads past a heap buffer while parsing ICC profile XML text description tags, causing a crash. Commit 29d088840b962a7cdd35993dfabc2cb35a049847 fixes the issue. No known workarounds are available.
CVSS 7.1
CVE-2026-27699 WRITEUP CRITICAL
basic-ftp < 5.2.0 - Path Traversal via Malicious FTP Server Directory Listing
The `basic-ftp` FTP client library for Node.js contains a path traversal vulnerability (CWE-22) in versions prior to 5.2.0 in the `downloadToDir()` method. A malicious FTP server can send directory listings with filenames containing path traversal sequences (`../`) that cause files to be written outside the intended download directory. Version 5.2.0 patches the issue.
CVSS 9.1
CVE-2026-27700 WRITEUP HIGH
Hono 4.12.0-4.12.1 - IP Spoofing via X-Forwarded-For Header Mishandling
Hono is a Web application framework that provides support for any JavaScript runtime. In versions 4.12.0 and 4.12.1, when using the AWS Lambda adapter (`hono/aws-lambda`) behind an Application Load Balancer (ALB), the `getConnInfo()` function incorrectly selected the first value from the `X-Forwarded-For` header. Because AWS ALB appends the real client IP address to the end of the `X-Forwarded-For` header, the first value can be attacker-controlled. This could allow IP-based access control mechanisms (such as the `ipRestriction` middleware) to be bypassed. Version 4.12.2 patches the issue.
CVSS 8.2
CVE-2026-27701 WRITEUP HIGH
livecodes - JavaScript Injection via Pull Request Title in i18n-update-pull Workflow
LiveCode is an open-source, client-side code playground. Prior to commit e151c64c2bd80d2d53ac1333f1df9429fe6a1a11, LiveCode's `i18n-update-pull` GitHub Actions workflow is vulnerable to JavaScript injection. The title of the Pull Request associated with the triggering issue comment is interpolated directly into a `actions/github-script` JavaScript block using a GitHub Actions template expression. An attacker who opens a PR with a crafted title can inject arbitrary JavaScript that executes with the privileges of the CI bot token (`CI_APP_ID` / `CI_APP_PRIVATE_KEY`), enabling exfiltration of repository secrets and unauthorized GitHub API operations. Commit e151c64c2bd80d2d53ac1333f1df9429fe6a1a11 fixes the issue.