CVE-2026-27579
HIGHkarnop realtime-collaboration-platform - Origin Validation Error in CORS Configuration
Title source: llmExploitation Summary
EIP tracks 3 public exploits for CVE-2026-27579. PoCs published by XiaomingX, AdityaBhatt3010, mbanyamer.
AI-analyzed exploit summary This repository contains a functional exploit PoC for CVE-2026-27579, which leverages a CORS misconfiguration in Appwrite to steal authenticated user data via credentialed cross-origin requests. The exploit sets up a malicious server that tricks victims into leaking their account information when visiting an attacker-controlled page.
Description
CollabPlatform is a full-stack, real-time doc collaboration platform. In all versions of CollabPlatform, the Appwrite project used by the application is misconfigured to allow arbitrary origins in CORS responses while also permitting credentialed requests. An attacker-controlled domain can issue authenticated cross-origin requests and read sensitive user account information, including email address, account identifiers, and MFA status. The issue did not have a fix at the time of publication.
Exploits (3)
This repository contains a functional exploit PoC for CVE-2026-27579, which leverages a CORS misconfiguration in Appwrite to steal authenticated user data via credentialed cross-origin requests. The exploit sets up a malicious server that tricks victims into leaking their account information when visiting an attacker-controlled page.
The repository contains a functional proof-of-concept exploit for CVE-2026-27579, demonstrating a CORS misconfiguration in the Appwrite backend of the realtime-collaboration-platform. The exploit leverages permissive CORS settings to exfiltrate authenticated user data via a simple fetch request.
This repository contains a functional exploit for CVE-2026-27579, which leverages a CORS misconfiguration in Appwrite to steal authenticated user data via credentialed cross-origin requests. The exploit uses a Flask server to host a malicious page that exfiltrates user data when visited by a logged-in victim.
References (1)
Scores
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N