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Description

Anchorr is a Discord bot for requesting movies and TV shows and receiving notifications when items are added to a media server. In versions 1.4.1 and below, a stored Cross-site Scripting (XSS) vulnerability in the web dashboard's User Mapping dropdown allows any unprivileged Discord user in the configured guild to execute arbitrary JavaScript in the Anchorr admin's browser. By chaining this with the GET /api/config endpoint (which returns all secrets in plaintext), an attacker can exfiltrate every credential stored in Anchorr which includes DISCORD_TOKEN, JELLYFIN_API_KEY, JELLYSEERR_API_KEY, JWT_SECRET, WEBHOOK_SECRET, and bcrypt password hashes without any authentication to Anchorr itself. This issue has been fixed in version 1.4.2.

PUBLISHED Reserved 2026-03-16 | Published 2026-03-20 | Updated 2026-03-20 | Assigner GitHub_M




CRITICAL: 9.7CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Problem types

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

Product status

< 1.4.2
affected

References

github.com/...nchorr/security/advisories/GHSA-qpmq-6wjc-w28q exploit

github.com/...nchorr/security/advisories/GHSA-qpmq-6wjc-w28q

github.com/...ommit/d5ae67e5b455241274ed0072cf2db43a6eb3f0b2

github.com/openVESSL/Anchorr/releases/tag/v1.4.2

cve.org (CVE-2026-32890)

nvd.nist.gov (CVE-2026-32890)

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