CVE-2025-47951
CVE-2025-47951 is a medium-severity vulnerability in Weblate with a CVSS 3.x base score of 4.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-307.
Key facts
- Severity: Medium (CVSS 3.x base score 4.9)
- EPSS exploit prediction: 0% (13th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-18400
- Weakness: CWE-307
- Affected product: Weblate
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is 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.
- How severe is CVE-2025-47951?
- CVE-2025-47951 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2025-47951 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2025-47951?
- CVE-2025-47951 affects Weblate. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2025-47951?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2025-47951 have an EU (EUVD) identifier?
- Yes. CVE-2025-47951 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-18400.
- When was CVE-2025-47951 published?
- CVE-2025-47951 was published on 2025-06-16 and last updated on 2026-06-17.
References
- https://github.com/WeblateOrg/weblate/commit/f806293451248c5d95e45b3b507e9d158bc4f384
- https://github.com/WeblateOrg/weblate/pull/14918
- https://github.com/WeblateOrg/weblate/releases/tag/weblate-5.12.1
- https://github.com/WeblateOrg/weblate/security/advisories/GHSA-57jg-m997-cx3q
- https://hackerone.com/reports/3150564
Affected products (1)
- cpe:2.3:a:weblate:weblate:*:*:*:*:*:*:*:*
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