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TI-2025-29079 Aliases CVE-2025-46338

Audiobookshelf Vulnerable to Cross-Site-Scripting Reflected via POST Request in /api/upload

Priority HIGH 70CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Cross-site scripting
Confidentiality · integrity · availability
None · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0037 31st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed audiobookshelf (advplyr): 2.21.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
advplyraudiobookshelfbefore 2.21.02.21.0Patch availableCNA
  • audiobookshelf Vendoradvplyr Affected before 2.21.0 Fixed in 2.21.0 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:audiobookshelf:audiobookshelf:*:*:*:*:*:*:*:*before 2.21.0Vulnerableadvplyr
  • cpe:2.3:a:audiobookshelf:audiobookshelf:*:*:*:*:*:*:*:* Versions before 2.21.0 Vulnerable ·advplyr

Remediation

  • Fix · CNA audiobookshelf (advplyr) Fixed in 2.21.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-46338

References

Exploit 1

Patch 1

  • TI-2025-18874 Remote Authentication-Bypass can lead to server crash or limited information disclosure due to faulty pattern matching CVSS 3.1HIGH 8.2
  • TI-2025-35683 Audiobookshelf vulnerable to OIDC token exfiltration and account takeover CVSS 3.1HIGH 8.8
  • TI-2023-25761 Audiobookshelf Server-Side Request Forgery and Arbitrary File Read Vulnerability CVSS 3.1HIGH 8.1
  • TI-2024-29391 Path Traversal in audiobookshelf CVSS 3.1MEDIUM 6.3
  • TI-2026-22306 Audiobookshelf has Stored XSS in Tooltip.vue via Audiobook Metadata CVSS 3.1MEDIUM 4.8
  • TI-2024-23305 Audiobookshelf Cross-Site-Scripting vulnerability via crafted ebooks CVSS 3.1MEDIUM 4.8
See all 10 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences