CVE-2023-5903 — Cross-site Scripting (XSS) - Stored in GitHub repository pkp/pkp-lib prior to 3

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

01What is this vulnerability?

Cross-site Scripting (XSS) - Stored 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: 2023-11-01T00:00:42.777Z
• Last modified: 2025-02-27T20:37:20.941Z

09References

• huntr.com — https://huntr.com/bounties/5c147ff8-3cc4-4f21-9f1c-13fd50957dad
• github.com — https://github.com/pkp/pkp-lib/commit/8b26ee404af3b11803a40e904f985f0a0b215a5c