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CVE-2025-25205— Remote Authentication-Bypass can lead to server crash or limited information disclosure due to faulty pattern matching

Quick assessment

Affected
advplyr audiobookshelf
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Audiobookshelf是Audiobookshelf开源的一个自托管的有声读物和播客服务器。 Audiobookshelf存在安全漏洞，该漏洞源于身份验证绕过逻辑中存在一个漏洞，允许未经身份验证的请求与 URL 中的某些未锚定正则表达式模式匹配。

CVSS 8.2 · High EPSS 4.75% · P92

Public Exploits 1

Metasploit · 1 audiobookshelf_auth_bypass.rb [auxiliary]

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-25205

Vulnerability Information
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Vulnerability Title
Remote Authentication-Bypass can lead to server crash or limited information disclosure due to faulty pattern matching
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
通过数据查询的敏感数据暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Audiobookshelf 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Audiobookshelf是Audiobookshelf开源的一个自托管的有声读物和播客服务器。 Audiobookshelf存在安全漏洞，该漏洞源于身份验证绕过逻辑中存在一个漏洞，允许未经身份验证的请求与 URL 中的某些未锚定正则表达式模式匹配。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
advplyr audiobookshelf >= 2.17.0, < 2.19.1 -

II. Public POCs for CVE-2025-25205

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 10676 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2025-25205

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Patches & Fixes for CVE-2025-25205 (4)

Vendor Advisories for CVE-2025-25205 (1)

IV. Related Vulnerabilities

Same product: audiobookshelf
Same vendor: advplyr
Same weakness: CWE-202

V. Comments for CVE-2025-25205

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