CyberRota Analysis
AI-GeneratedEtherpad versions 2.6.0 to 3.1.0 are vulnerable due to improper handling of author tokens in the token transfer process, allowing unauthenticated attackers to exploit the system by repeatedly redeeming tokens and impersonating legitimate users. The lack of expiration checks and the retention of raw tokens pose significant risks, enabling unauthorized access to collaborative documents. Organizations using affected Etherpad versions should prioritize upgrading to version 3.1.0 to mitigate these risks.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
Note: these links are listed for security research and verification purposes only.
Original NVD Description
Etherpad is a real-time collaborative editor. From 2.6.0 until 3.1.0, Etherpad's src/node/hooks/express/tokenTransfer.ts uses POST /tokenTransfer to store an author token for transfer between browsers and exposes it through GET /tokenTransfer/{uuid}. Although the record includes createdAt, the transfer has no expiration check, is not removed after successful redemption, and is returned by res.send(tokenData), including the raw author token. An unauthenticated attacker who obtains a transfer UUID can repeatedly redeem it, receive fresh author cookies, read the cleartext token, and impersonate the originating author for pad read and write operations. This issue is fixed in version 3.1.0.