weblateorg/weblate · Security
Weblate lacks rate limiting when verifying second factor
- GHSA ID
- GHSA-57jg-m997-cx3q
- CVE ID
- CVE-2025-47951
- Severity
- medium
- Published
- Updated
- CVSS
- 4.9 · CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N
- CVSS v3
- 4.9 · CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N
Description
Impact
The verification of the second factor was not subject to rate limiting. The absence of rate limiting on the second factor endpoint allows an attacker with valid credentials to automate OTP guessing.
Patches
This issue has been addressed in Weblate 5.12 via https://github.com/WeblateOrg/weblate/pull/14918.
References
Thanks to obscuredeer for reporting this issue at HackerOne.
CWEs
- CWE-307 · Improper Restriction of Excessive Authentication Attempts
References
- https://github.com/WeblateOrg/weblate/security/advisories/GHSA-57jg-m997-cx3q ↗
- https://github.com/WeblateOrg/weblate/pull/14918 ↗
- https://github.com/WeblateOrg/weblate/commit/f806293451248c5d95e45b3b507e9d158bc4f384 ↗
- https://hackerone.com/reports/3150564 ↗
- https://nvd.nist.gov/vuln/detail/CVE-2025-47951 ↗
- https://github.com/WeblateOrg/weblate/releases/tag/weblate-5.12.1 ↗
- https://github.com/advisories/GHSA-57jg-m997-cx3q ↗