CVE-2025-46338 Audiobookshelf Vulnerable to Cross-Site-Scripting Reflected via POST Request in /api/upload
Attackers can execute arbitrary JavaScript in victims' browsers via reflected XSS in the upload API, requiring an upgrade to Audiobookshelf.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-46338?
CVE-2025-46338 is a medium-severity cross-site scripting vulnerability in advplyr audiobookshelf, published on 29 Apr 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Audiobookshelf is a self-hosted audiobook and podcast server. Prior to version 2.21.0, an improper input handling vulnerability in the `/api/upload` endpoint allows an attacker to perform a reflected cross-site scripting (XSS) attack by submitting malicious payloads in the `libraryId` field. The unsanitized input is reflected in the server’s error message, enabling arbitrary JavaScript execution in a victim's browser. This issue has been patched in version 2.21.0.
Weakness: CWE-79
Which versions are affected by CVE-2025-46338?
It affects 1 product.
Products include Audiobookshelf Audiobookshelf.
How do I fix CVE-2025-46338?
No fix has been published for CVE-2025-46338 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2025-46338 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-46338 exists.
Other vulnerabilities in advplyr audiobookshelf
- CVE-2025-57800 Audiobookshelf vulnerable to OIDC token exfiltration and account takeover
- CVE-2025-25205 Remote Authentication-Bypass can lead to server crash or limited information disclosure due to faulty pattern matching
- CVE-2023-47619 Audiobookshelf Server-Side Request Forgery and Arbitrary File Read Vulnerability
- CVE-2023-47624 Audiobookshelf Arbitrary File Read Vulnerability
- CVE-2024-43797 Path Traversal in audiobookshelf
Sources
Also known as GHSA-47g3-c5hx-2q3w.