Weblate lacks rate limiting when verifying second factor
### 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](https://hackerone.com/obscuredeer) for reporting this [issue at HackerOne](https://hackerone.com/reports/3150564).
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describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2025-47951US | — | — | ||
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… | ||||
02
references
External citations — patches, advisories, analysis.
- https://github.com/WeblateOrg/weblatePACKAGE
- https://github.com/WeblateOrg/weblate/commit/f806293451248c5d95e45b3b507e9d158bc4f384WEB
- https://github.com/WeblateOrg/weblate/pull/14918WEB
- https://github.com/WeblateOrg/weblate/releases/tag/weblate-5.12.1WEB
- https://github.com/WeblateOrg/weblate/security/advisories/GHSA-57jg-m997-cx3qWEB
- https://hackerone.com/reports/3150564WEB
- https://nvd.nist.gov/vuln/detail/CVE-2025-47951ADVISORY
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