CVE-2025-49591

CryptPad 2FA Bypass Vulnerability

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

cryptpad

CVSS v4.0 GITHUB

7.4 HIGHCVSS: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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1 NVD

9.1 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

EPSS

0.52% chance of exploitation in the next 30 days, 43rd percentile

Published

2025-06-18

Updated

2025-06-23

Proof-of-concept exploits (1)

• cryptpad/cryptpad/security/advisories/GHSA-xq5x-wgcm-3p33

Security advisories

• cryptpad/cryptpad/commit/0c5d4bbf5e5206d53470ea86a664fa2b703fb611

References

• CVE Record
• NVD entry