Insufficient Rate Limiting in Weblate's OTP Verification by WeblateOrg
CVE-2025-47951

4.9MEDIUM

Key Information:

Vendor

Weblateorg

Status
Weblate
Vendor
CVE Published:
16 June 2025

What is CVE-2025-47951?

Weblate, a web-based localization tool, experienced a security issue prior to version 5.12 where the verification process for the second factor lacked proper rate limiting. This vulnerability allowed attackers with valid credentials to automate the guessing of one-time passwords (OTPs) due to unrestricted repeated attempts. The issue has been addressed in version 5.12, which implements necessary rate limiting to bolster security against such automated attacks.

Affected Version(s)

weblate < 5.12

References

https://github.com/WeblateOrg/weblate/security/advisories...
x_refsource_CONFIRM
https://github.com/WeblateOrg/weblate/pull/14918
x_refsource_MISC
https://github.com/WeblateOrg/weblate/commit/f80629345124...
x_refsource_MISC

CVSS V3.1

Score:
4.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.
CVE-2025-47951 : Insufficient Rate Limiting in Weblate's OTP Verification by WeblateOrg