CVE-2023-5891 — Cross-site Scripting (XSS) - Reflected in GitHub repository pkp/pkp-lib prior to

Cross-site Scripting (XSS) - Reflected in GitHub repository pkp/pkp-lib prior to 3.3.0-16.

01What is this vulnerability?

Cross-site Scripting (XSS) - Reflected in GitHub repository pkp/pkp-lib prior to 3.3.0-16.

02Affected products

Vendor	Product	Versions
pkp	pkp/pkp	lib — 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: 2023-11-01T00:00:18.684Z
• Last modified: 2025-02-27T20:38:11.533Z

09References

• huntr.com — https://huntr.com/bounties/ce4956e4-9ef5-4e0e-bfb2-481ec5cfb0a5
• github.com — https://github.com/pkp/pkp-lib/commit/d4111c4d0eef783f1ed2e55654a5b83d9d527d97