openVESSL Anchorr up to 1.4.1 /api/config cross site scripting

Summaryinfo

A vulnerability was found in openVESSL Anchorr up to 1.4.1. It has been declared as problematic. The affected element is an unknown function of the file /api/config. Such manipulation of the argument DISCORD_TOKEN/JELLYFIN_API_KEY/JELLYSEERR_API_KEY/JWT_SECRET/WEBHOOK_SECRET leads to cross site scripting. This vulnerability is documented as CVE-2026-32890. The attack can be executed remotely. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in openVESSL Anchorr up to 1.4.1 and classified as problematic. Affected by this issue is some unknown processing of the file /api/config. The manipulation of the argument DISCORD_TOKEN/JELLYFIN_API_KEY/JELLYSEERR_API_KEY/JWT_SECRET/WEBHOOK_SECRET with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity. CVE summarizes:

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.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-32890 since 03/16/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007.

Upgrading to version 1.4.2 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch d5ae67e5b455241274ed0072cf2db43a6eb3f0b2 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.

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Productinfo

Vendor

• openVESSL

Name

• Anchorr

Version

• 1.4.0
• 1.4.1

License

• open-source

Website

• Product: https://github.com/openVESSL/Anchorr/

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