Vulnerability · Published Jun 18, 2025 · Assigned by GitHub_M

CVE-2025-49591CryptPad 2FA Bypass Vulnerability

High 7.4

In plain English

A high-severity improper access control in cryptpad from cryptpad. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 44% of all known vulnerabilities).

Severity (CVSS 4.0)7.4High

Exploit odds (30 days)0.5%top 55.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
cryptpad	cryptpad	< 2025.3.0

Weakness: CWE-284, CWE-287 · Vector: 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

References

https://github.com/cryptpad/cryptpad/security/advisories/GHSA-xq5x-wgcm-3p33 x_refsource_CONFIRM
https://github.com/cryptpad/cryptpad/commit/0c5d4bbf5e5206d53470ea86a664fa2b703fb611 x_refsource_MISC
https://github.com/cryptpad/cryptpad/commit/f624f9d457d36040f57c7598d98a8b9461b79837 x_refsource_MISC
https://github.com/cryptpad/cryptpad/blob/15c81aa8ccb737a9a1167481f4a699af331364bb/lib/http-worker.js#L356-L364 x_refsource_MISC