advplyr audiobookshelf up to 2.19.0 Query Parameter /api/items/1/cover information exposure

Summaryinfo

A vulnerability categorized as problematic has been discovered in advplyr audiobookshelf up to 2.19.0. This vulnerability affects unknown code of the file /api/items/1/cover of the component Query Parameter Handler. Such manipulation leads to information exposure. This vulnerability is uniquely identified as CVE-2025-25205. The attack can be launched remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in advplyr audiobookshelf up to 2.19.0. Affected by this issue is an unknown functionality of the file /api/items/1/cover of the component Query Parameter Handler. The manipulation with an unknown input leads to a information exposure vulnerability. Using CWE to declare the problem leads to CWE-202. When trying to keep information confidential, an attacker can often infer some of the information by using statistics. Impacted is confidentiality. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability is handled as CVE-2025-25205 since 02/03/2025. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1592 by the MITRE ATT&CK project.

Upgrading to version 2.19.1 eliminates this vulnerability. Applying the patch bf8407274e3ee300af1927ee660d078a7a801e1c is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• advplyr

Name

• audiobookshelf

Version

• 2.0
• 2.1
• 2.2
• 2.3
• 2.4
• 2.5
• 2.6
• 2.7
• 2.8
• 2.9
• 2.10
• 2.11
• 2.12
• 2.13
• 2.14
• 2.15
• 2.16
• 2.17
• 2.18
• 2.19.0

License

• open-source

Website

• Product: https://github.com/advplyr/audiobookshelf/

CPE 2.3info

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CPE 2.2info

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