CVE-2023-4158 — Cross-site Scripting (XSS) - Stored in GitHub repository omeka/omeka-s prior to

Cross-site Scripting (XSS) - Stored in GitHub repository omeka/omeka-s prior to 4.0.3.

01What is this vulnerability?

Cross-site Scripting (XSS) - Stored in GitHub repository omeka/omeka-s prior to 4.0.3.

02Affected products

Vendor	Product	Versions
omeka	omeka/omeka	s — unspecified

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: 2023-08-04T17:16:44.572Z
• Last modified: 2024-10-09T19:46:08.007Z

09References

• huntr.dev — https://huntr.dev/bounties/e0e462ae-d7cb-4a84-b6fe-5f5de20e3d15
• github.com — https://github.com/omeka/omeka-s/commit/2a7fb26452167c8a1d95f207ae5328c6b1b0fcf8