Writeup Exploits

62,573 exploits tracked across all sources.

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CVE-2026-42857 WRITEUP MEDIUM
Open edX Platform: Stored CSS Injection in Email Notifications via Incomplete HTML Sanitization
Open edX Platform enables the authoring and delivery of online learning at any scale. The HTML sanitizer clean_thread_html_body() used for discussion notification emails fails to remove <style> tags from user-generated discussion post content. This content is rendered with Django's |safe template filter in email notification templates, allowing any enrolled student to inject arbitrary CSS into email notifications sent to other users. This enables email tracking (IP address disclosure), content spoofing, and phishing attacks. This vulnerability is fixed with commit cddc25cd791bb78f76833896e4778f668861df12.
CVSS 4.6
CVE-2026-42858 WRITEUP HIGH
Open edX Platform: Server-Side Request Forgery (SSRF) in SAML Provider Data Sync Endpoint
Open edX Platform enables the authoring and delivery of online learning at any scale. The sync_provider_data endpoint in SAMLProviderDataViewSet allows authenticated Enterprise Admin users to supply an arbitrary URL via the metadata_url POST parameter. This URL is passed directly to requests.get() in fetch_metadata_xml() without any URL validation, IP filtering, or scheme enforcement. An attacker with Enterprise Admin privileges can force the server to make HTTP requests to internal network services, cloud metadata endpoints (e.g., AWS 169.254.169.254), or other attacker-controlled destinations. This vulnerability is fixed by commit 6fda1f120ff5a590d120ae1180185525f399c6d0 and 70a56246dd9c9df57c596e64bdd8a11b1d9da054.
CVSS 8.5
CVE-2026-42859 WRITEUP HIGH
Neat VNC: Buffer overflow due to oversized RSA public keys
Neat VNC is a VNC server library. Prior to 0.9.6, a pre-authentication stack buffer overflow exists in neatvnc in the RSA-AES security type handler. An unauthenticated remote attacker who can reach the VNC listening socket can send a crafted security type 5 (RSA-AES) or security type 129 (RSA-AES-256) handshake with an oversized client RSA public key, causing rsa_aes_send_challenge in src/auth/rsa-aes.c to overflow a 1024-byte on-stack buffer when encrypting the server challenge. This results in at least a denial of service via server crash. This vulnerability is fixed in 0.9.6.
CVE-2026-42865 WRITEUP MEDIUM
Inbox Zero: Cross-account cleaner email stream exposure
Inbox Zero is an AI personal assistant for email. Prior to 2.29.3, the cleaner email stream endpoint used a shared Redis subscription listener, which could deliver thread events for one authenticated account to another authenticated account using the cleaner feature at the same time. This vulnerability is fixed in 2.29.3.
CVSS 4.3
CVE-2026-43638 WRITEUP MEDIUM
Bitwarden Server < 2026.4.1 Missing Authorization via Organization Cipher Import
Bitwarden Server prior to v2026.4.1 contains a missing authorization vulnerability that allows any authenticated user to write ciphers into an arbitrary organization via `POST /ciphers/import-organization` by submitting an empty `collections` array, which causes the server-side permission check to be skipped.
CVSS 5.4
CVE-2026-43639 WRITEUP HIGH
Bitwarden Server < 2026.4.0 Missing Authorization via Provider Clients
Bitwarden Server prior to v2026.4.0 contains a missing authorization vulnerability that allows a provider service user to add an arbitrary organization to their provider via `POST /providers/{providerId}/clients/existing`, resulting in takeover of the target organization; self-hosted installations are unaffected as this endpoint is restricted to Cloud via SelfHosted(NotSelfHostedOnly = true).
CVSS 8.0
CVE-2026-43640 WRITEUP HIGH
Bitwarden Server < 2026.4.1 Authentication Bypass via SCIM API Key
Bitwarden Server prior to v2026.4.1 does not require master-password re-authentication when retrieving or rotating an organization's SCIM API key, allowing an authenticated user with SCIM management privileges to obtain the key using only a valid session.
CVSS 8.1
CVE-2026-44737 WRITEUP MEDIUM
grav-plugin-admin: Stored Cross-Site Scripting (XSS) Reflected endpoint /admin/pages/[page], parameter data[header][title]
grav-plugin-admin is the admin plugin for Grav is an HTML user interface that provides a convenient way to configure Grav and easily create and modify pages. Prior to 1.10.49.5, the application fails to properly validate and sanitize user input in the data[header][title] parameter. As a result, attackers can craft a malicious URL with an XSS payload. When this URL is accessed, the injected script is reflected back in the HTTP response and executed within the context of the victim's browser session. This vulnerability is fixed in 1.10.49.5.
CVE-2026-44991 WRITEUP MEDIUM
OpenClaw < 2026.4.21 - Authorization Bypass in Owner-Enforced Commands via Wildcard Channel Senders
OpenClaw before 2026.4.21 contains an authorization bypass vulnerability in command-auth.ts that allows non-owner senders to execute owner-enforced slash commands when wildcard inbound senders are configured without explicit owner allowFrom settings. Attackers can exploit this by sending commands like /send, /config, or /debug on affected channels to bypass owner-only command authorization checks.
CVSS 4.2
CVE-2026-44992 WRITEUP MEDIUM
OpenClaw 2026.4.5 < 2026.4.20 - MiniMax API Host Override via Workspace dotenv
OpenClaw versions 2026.4.5 before 2026.4.20 contain an environment variable injection vulnerability allowing workspace dotenv to override MINIMAX_API_HOST. Attackers can redirect credentialed MiniMax API requests to attacker-controlled origins, exposing the MiniMax API key in Authorization headers.
CVSS 5.0
CVE-2026-44993 WRITEUP MEDIUM
OpenClaw < 2026.4.20 - Direct Message Misclassification in Feishu Card Actions
OpenClaw before 2026.4.20 contains a message classification vulnerability in Feishu card-action callbacks that misclassifies direct messages as group conversations. Attackers can bypass dmPolicy enforcement by triggering card-action flows in direct message conversations that should have been blocked by restrictive policies.
CVSS 5.4
CVE-2026-44994 WRITEUP MEDIUM
OpenClaw < 2026.4.22 - Authentication Bypass in Gateway Control UI Bootstrap Config Endpoint
OpenClaw before 2026.4.22 contains an authentication bypass vulnerability in the Control UI bootstrap config endpoint that allows unauthenticated attackers to read sensitive configuration fields. Attackers can access the bootstrap config route without a valid Gateway token to expose sensitive bootstrap and config information intended only for authenticated Control UI sessions.
CVSS 5.3
CVE-2026-44995 WRITEUP HIGH
OpenClaw < 2026.4.20 - Arbitrary Code Execution via MCP stdio Environment Variables
OpenClaw before 2026.4.20 contains an improper environment variable validation vulnerability in MCP stdio server configuration that allows attackers to execute arbitrary code. Malicious workspace configurations can pass dangerous startup variables like NODE_OPTIONS, LD_PRELOAD, or BASH_ENV to spawned MCP server processes, enabling code injection when operators start sessions using those servers.
CVSS 7.3
CVE-2026-44996 WRITEUP LOW
OpenClaw < 2026.4.15 - Arbitrary Local File Read via Webchat Audio Embedding
OpenClaw before 2026.4.15 contains an arbitrary local file read vulnerability in the webchat audio embedding helper that fails to apply local media root containment checks. Attackers can influence agent or tool-produced ReplyPayload.mediaUrl parameters to resolve absolute local paths or file URLs, read audio-like files, and embed them base64-encoded into webchat responses.
CVSS 3.7
CVE-2026-44997 WRITEUP MEDIUM
OpenClaw < 2026.4.22 - Security Envelope Constraint Bypass in ACP Child Sessions
OpenClaw before 2026.4.22 contains a security envelope constraint bypass vulnerability allowing restricted subagents to spawn ACP child sessions that fail to inherit depth, child-count limits, control scope, or target-agent restrictions. Attackers can exploit this by spawning child sessions that bypass subagent-only constraints, potentially escalating privileges or accessing restricted resources.
CVSS 4.3
CVE-2026-44998 WRITEUP MEDIUM
OpenClaw < 2026.4.20 - Tool Policy Bypass via Bundled MCP/LSP Tools
OpenClaw before 2026.4.20 contains a tool policy bypass vulnerability allowing bundled MCP and LSP tools to circumvent configured tool restrictions. Attackers with local agent access can append restricted tools to the effective tool set after policy filtering, bypassing profile policies, allow/deny lists, owner-only restrictions, sandbox policies, and subagent policies.
CVSS 5.4
CVE-2026-44999 WRITEUP MEDIUM
OpenClaw < 2026.4.20 - Improper Trust Labeling in Isolated Cron Awareness Events
OpenClaw before 2026.4.20 fails to properly preserve untrusted labels for isolated cron awareness events, allowing webhook-triggered cron agent output to be recorded as trusted system events. Attackers can exploit this trust-labeling issue to strengthen prompt-injection attacks by rendering untrusted events as trusted System events.
CVSS 5.3
CVE-2026-45000 WRITEUP MEDIUM
OpenClaw < 2026.4.20 - Server-Side Request Forgery via Browser CDP Profile Creation
OpenClaw before 2026.4.20 contains a server-side request forgery vulnerability in browser CDP profile creation that skips strict-mode SSRF policy checks. Attackers can create stored profiles pointing to private-network or metadata endpoints that bypass security policies and are later probed during normal profile status operations.
CVSS 5.0
CVE-2026-45001 WRITEUP HIGH
OpenClaw < 2026.4.20 - Gateway Config Mutation Guard Bypass via Agent Tool Access
OpenClaw before 2026.4.20 contains a guard bypass vulnerability in the agent-facing gateway config.patch and config.apply endpoints that fails to protect operator-trusted settings including sandbox policy, plugin enablement, gateway auth/TLS, hook routing, MCP server configuration, SSRF policy, and filesystem hardening. A prompt-injected model with access to the owner-only gateway tool can persist unauthorized changes to protected operator settings.
CVSS 7.1
CVE-2026-45002 WRITEUP MEDIUM
OpenClaw < 2026.4.20 - Hook Session-Key Bypass via Template Mapping
OpenClaw before 2026.4.20 contains a hook session-key bypass vulnerability that allows attackers to circumvent the hooks.allowRequestSessionKey opt-in restriction. Attackers can render externally influenced session keys through templated hook mappings to bypass webhook routing isolation controls.
CVSS 5.3
CVE-2026-45003 WRITEUP MEDIUM
OpenClaw < 2026.4.22 - Connector Endpoint Host Override via Workspace dotenv Files
OpenClaw before 2026.4.22 allows workspace dotenv files to override connector endpoint hosts for Matrix, Mattermost, IRC, and Synology connectors. Attackers with workspace access can redirect runtime traffic to malicious endpoints by setting endpoint variables in dotenv files.
CVSS 5.0
CVE-2026-45004 WRITEUP HIGH
OpenClaw < 2026.4.23 - Arbitrary Code Execution via setup-api.js in Current Working Directory
OpenClaw before 2026.4.23 contains an arbitrary code execution vulnerability in the bundled plugin setup resolver that loads setup-api.js from process.cwd() during provider setup metadata resolution. Attackers can execute arbitrary JavaScript under the current user account by placing a malicious extensions/<plugin>/setup-api.js file in a repository and convincing a user to run OpenClaw commands from that directory.
CVSS 7.8
CVE-2026-45005 WRITEUP MEDIUM
OpenClaw < 2026.4.23 - Webhook Route Secret Cache Not Invalidated After Rotation
OpenClaw before 2026.4.23 caches resolved webhook route secrets backed by SecretRef values, allowing stale secrets to remain valid after rotation and reload. Attackers with previously valid webhook route secrets can continue authenticating requests and invoking configured webhook task flows until gateway or plugin restart.
CVSS 6.0
CVE-2026-45006 WRITEUP HIGH
OpenClaw < 2026.4.23 - Unsafe Config Mutation via Gateway Tool Denylist Bypass
OpenClaw before 2026.4.23 contains an improper access control vulnerability in the gateway tool's config.apply and config.patch operations that allows compromised models to write unsafe configuration changes by bypassing an incomplete denylist protection. Attackers can persist malicious config modifications affecting command execution, network behavior, credentials, and operator policies that survive restart.
CVSS 8.8
CVE-2026-4802 WRITEUP HIGH
Cockpit: cockpit: arbitrary command execution via crafted links in system logs ui
A flaw was found in Cockpit. This vulnerability allows a remote attacker to achieve arbitrary command execution on the host by exploiting unsanitized user-controlled parameters within crafted links in the system logs user interface (UI). An attacker can inject shell metacharacters and command substitutions into these parameters, leading to the execution of arbitrary shell commands on the affected system. This could result in a complete system compromise.
CVSS 8.0