CVE-2023-47624 — Audiobookshelf is a self-hosted audiobook and podcast server

Audiobookshelf is a self-hosted audiobook and podcast server. In versions 2.4.3 and prior, any user (regardless of their permissions) may be able to read files from the local file system due to a path traversal in the `/hls` endpoint. This issue may lead to Information Disclosure

01What is this vulnerability?

Audiobookshelf is a self-hosted audiobook and podcast server. In versions 2.4.3 and prior, any user (regardless of their permissions) may be able to read files from the local file system due to a path traversal in the `/hls` endpoint. This issue may lead to Information Disclosure. As of time of publication, no patches are available.

02Affected products

Vendor	Product	Versions
advplyr	audiobookshelf	<= 2.4.3

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: 2023-12-13T21:09:00.688Z
• Last modified: 2024-08-02T21:16:42.103Z

09References

• securitylab.github.com — https://securitylab.github.com/advisories/GHSL-2023-203_GHSL-2023-204_audiobooks…
• github.com — https://github.com/advplyr/audiobookshelf/blob/d7b2476473ef1934eedec41425837cddf…