CryptPad 2FA Bypass Vulnerability
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.4epss 0.5%
exploitation probability
0.5%top 63% of all CVEs
observed exploitation
nono source reports it
CryptPad is a collaboration suite. Prior to version 2025.3.0, enforcement of Two-Factor Authentication (2FA) in CryptPad can be trivially bypassed, due to weak implementation of access controls. An attacker that compromises a user's credentials can gain access to the victim's account, even if the victim has 2FA set up. This is due to 2FA not being enforced if the path parameter is not 44 characters long, which can be bypassed by simply URL encoding a single character in the path. This issue has been patched in version 2025.3.0.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
Affected products
cryptpad · cryptpadReferences
https://github.com/cryptpad/cryptpad/blob/15c81aa8ccb737a9a1167481f4a699af331364bb/lib/http-worker.js#L356-L364https://github.com/cryptpad/cryptpad/commit/0c5d4bbf5e5206d53470ea86a664fa2b703fb611https://github.com/cryptpad/cryptpad/commit/f624f9d457d36040f57c7598d98a8b9461b79837https://github.com/cryptpad/cryptpad/security/advisories/GHSA-xq5x-wgcm-3p33