CVE-2025-67715: Weblate Systematic User and Project Enumeration via Broken Authorization in REST API
Summary
CVE-2025-67715: Weblate has Systematic User and Project Enumeration via Broken Authorization in REST API (IDOR). Affects weblate versions < 5.15. Fixed in 5.15. How to fix ↓
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Background
Weblate is a web-based translation management system that facilitates collaborative translation of software and other content. It provides features such as translation memory, glossary management, and integration with version control systems. However, it has been found to have a vulnerability that allows unauthorized access to user information through its REST API.
Vulnerability Detail
The vulnerability arises from improper authorization checks in the Weblate REST API, specifically an Insecure Direct Object Reference (IDOR) issue. This flaw allows attackers to retrieve sensitive user notification settings or enumerate all users within the system. The implications of this vulnerability are significant, as it can lead to unauthorized access to user data and potentially compromise user privacy.
How To Fix
Latest published version: 2026.10.1 as of 22 Oct 2026
pip install --upgrade "weblate==2026.10.1"Upgrading to it may include breaking changes; the version below is the minimum fixed release for this vulnerability.
If you need the minimum change
5.15
This is the first release that contains the fix.
pip install --upgrade "weblate==5.15"Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary measure, restrict access to the Weblate API or implement additional authorization checks in your application to prevent unauthorized access to user data until the package can be updated.
Conclusion
In summary, CVE-2025-67715 is a significant vulnerability in Weblate that can lead to unauthorized access to user data through its REST API. Users are strongly advised to update to version 5.15 or later to mitigate this risk. Additionally, temporary workarounds can be implemented until the update is applied.
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FAQ
CVE-2025-67715 is a vulnerability in Weblate that allows unauthorized users to access sensitive user information through the REST API.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
The risks include unauthorized access to user notification settings and the ability to enumerate all users, which can lead to privacy breaches.
You can update Weblate by running the command 'pip install --upgrade weblate' in your terminal to install the patched version.
The CVSS score of this vulnerability is 4.3, indicating a moderate severity level.
References
Related vulnerabilities
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