CVE-2025-25205

HIGH EPSS 88.8%
Published Feb 12, 20251y ago · Modified Jun 17, 20261w ago
8.2 CVSS 3.1
High
Find Similar
Published Feb 12, 2025 1y ago
Last Modified Jun 17, 2026 1w ago

Description

Audiobookshelf is a self-hosted audiobook and podcast server. Starting in version 2.17.0 and prior to version 2.19.1, a flaw in the authentication bypass logic allows unauthenticated requests to match certain unanchored regex patterns in the URL. Attackers can craft URLs containing substrings like "/api/items/1/cover" in a query parameter (?r=/api/items/1/cover) to partially bypass authentication or trigger server crashes under certain routes. This could lead to information disclosure of otherwise protected data and, in some cases, a complete denial of service (server crash) if downstream code expects an authenticated user object. Version 2.19.1 contains a patch for the issue.

CVSS Details

Base Score
8.2
Exploitability
3.9
Impact
4.2
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
88.8% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 3

CWE-202
CWE-287 Improper Authentication Authentication
CWE-400 Uncontrolled Resource Consumption Resource Mgmt

Affected Products 1

VendorProductVersionRange
audiobookshelfaudiobookshelf*≥2.17.0  –  <2.19.1

References 5

  • github.com https://github.com/advplyr/audiobookshelf/blob/1a3d70d04100924d41391acb55bd8ddca486a4fa/server/Auth.js#L17-L41
    Product
  • github.com https://github.com/advplyr/audiobookshelf/commit/bf8407274e3ee300af1927ee660d078a7a801e1c
    Patch
  • github.com https://github.com/advplyr/audiobookshelf/commit/ec6537656925a43871b07cfee12c9f383844d224
    Patch
  • github.com https://github.com/advplyr/audiobookshelf/pull/3584
    Issue TrackingPatch
  • github.com https://github.com/advplyr/audiobookshelf/security/advisories/GHSA-pg8v-5jcv-wrvw
    ExploitVendor Advisory

Remediation

  • github.com https://github.com/advplyr/audiobookshelf/commit/bf8407274e3ee300af1927ee660d078a7a801e1c
    Patch
  • github.com https://github.com/advplyr/audiobookshelf/commit/ec6537656925a43871b07cfee12c9f383844d224
    Patch
  • github.com https://github.com/advplyr/audiobookshelf/pull/3584
    Issue TrackingPatch