CVE-2023-51665 — Audiobookshelf is a self-hosted audiobook and podcast server

Audiobookshelf is a self-hosted audiobook and podcast server. Prior to 2.7.0, Audiobookshelf is vulnerable to unauthenticated blind server-side request (SSRF) vulnerability in Auth.js. This vulnerability has been addressed in version 2.7.0. There are no known workarounds for this

01What is this vulnerability?

Audiobookshelf is a self-hosted audiobook and podcast server. Prior to 2.7.0, Audiobookshelf is vulnerable to unauthenticated blind server-side request (SSRF) vulnerability in Auth.js. This vulnerability has been addressed in version 2.7.0. There are no known workarounds for this vulnerability.

02Affected products

Vendor	Product	Versions
advplyr	audiobookshelf	< 2.7.0

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-12-27T17:26:57.166Z
• Last modified: 2024-08-02T22:40:34.167Z

09References

• github.com — https://github.com/advplyr/audiobookshelf/security/advisories/GHSA-gjgj-98v3-47p…
• github.com — https://github.com/advplyr/audiobookshelf/commit/728496010cbfcee5b7b54001c9f79e0…