Medium
Audiobookshelf Vulnerable to Cross-Site-Scripting Reflected via POST Request in /api/upload
Type: advisorySources: OSV
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.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2025-46338
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 5 Nov 2026, 03:27 UTC · Revision 1
Source evidence
Audiobookshelf Vulnerable to Cross-Site-Scripting Reflected via POST Request in /api/upload
core-osv · Original sourcePublished 29 Apr 2025, 04:34 UTC
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.
osv:CVE-2025-46338
Complete source record
{
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"url": "https://osv.dev/vulnerability/CVE-2025-46338",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Audiobookshelf Vulnerable to Cross-Site-Scripting Reflected via POST Request in /api/upload",
"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.",
"evidence": "osv:CVE-2025-46338",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2025-46338",
"aliases": [
"CVE-2025-46338",
"GHSA-47g3-c5hx-2q3w"
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"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"
}
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"affected": [
{
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{
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}
}
],
"modified": "2026-10-28T02:30:42.169481969Z",
"provider": "osv",
"references": [
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"https://github.com/advplyr/audiobookshelf/security/advisories/GHSA-47g3-c5hx-2q3w",
"https://nvd.nist.gov/vuln/detail/CVE-2025-46338",
"https://github.com/advplyr/audiobookshelf/commit/35870a01583b2947030f4e3d4ac769c3ff298386"
],
"provider_metadata": {
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],
"cna_assigner": "GitHub_M",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/46xxx/CVE-2025-46338.json"
}
},
"related_cves": [
{
"value": "CVE-2025-46338",
"evidence": "/id"
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],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 509843,
"published_at": "2025-04-29T04:34:44.713+00:00"
}