CVE-2023-3021 — Cross-site Scripting (XSS) - Stored in GitHub repository mkucej/i-librarian-free

Cross-site Scripting (XSS) - Stored in GitHub repository mkucej/i-librarian-free prior to 5.10.4.

01What is this vulnerability?

Cross-site Scripting (XSS) - Stored in GitHub repository mkucej/i-librarian-free prior to 5.10.4.

02Affected products

Vendor	Product	Versions
mkucej	mkucej/i	librarian-free — 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

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

Open in Sigma generator →

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: 2023-05-31T00:00:00.000Z
• Last modified: 2025-01-09T21:04:58.188Z

09References

• huntr.dev — https://huntr.dev/bounties/9d289d3a-2931-4e94-b61c-449581736eff
• github.com — https://github.com/mkucej/i-librarian-free/commit/187e5ff4f413047fb522a9ab24c3c4…