Vulnerability in Weblate
CVE-2025-47951
Weblate is a web based localization tool. Prior to version 5.12, 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. This issue has been patched in version 5.12.
EPSS: 0.002 (12.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N.
Affected products
- Weblate
- Weblateorg Weblate — versions < 5.12
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (x_refsource_MISC, Issue Tracking)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Permissions Required, x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC, Release Notes)
Frequently asked questions
- What is CVE-2025-47951?
- CVE-2025-47951 is a medium-severity vulnerability in Weblate, classified under Improper Restriction of Excessive Authentication Attempts. CVSS score: 4.9/10. Published 2025-06-16.
- How severe is CVE-2025-47951?
- Medium severity. CVSS v3 base score is 4.9 out of 10.