Cloud Vulnerability DB
An open project to list all known cloud vulnerabilities and Cloud Service Provider security issues
Vulnerability DatabaseCVE-2025-47951
CVE-2025-47951:
Python vulnerability analysis and mitigation
Overview
Weblate, a web-based localization tool, was found to have a security vulnerability (CVE-2025-47951) affecting versions prior to 5.12. The vulnerability was discovered and disclosed on June 16, 2025, and involves the absence of rate limiting on the second-factor authentication verification endpoint (GitHub Advisory, NVD).
Technical details
The vulnerability is classified as CWE-307 (Improper Restriction of Excessive Authentication Attempts) with a CVSS v3.1 base score of 4.9 (Medium). The attack vector is Network-based with High attack complexity, requiring Low privileges and No user interaction. The scope is Changed, with Low impact on both Confidentiality and Integrity, and No impact on Availability (GitHub Advisory).
Impact
An attacker with valid credentials could exploit this vulnerability to automate OTP (One-Time Password) guessing attempts against the second-factor authentication mechanism, potentially leading to unauthorized access to user accounts (GitHub Advisory).
Mitigation and workarounds
This security issue has been patched in Weblate version 5.12. Users are advised to upgrade to this version or later to address the vulnerability. The fix was implemented through pull request #14918 (GitHub PR, GitHub Commit).
Additional resources
Source: This report was generated using AI
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