CVE-2023-4451 — Cross-site Scripting (XSS) - Reflected in GitHub repository cockpit-hq/cockpit p

Cross-site Scripting (XSS) - Reflected in GitHub repository cockpit-hq/cockpit prior to 2.6.4.

01What is this vulnerability?

Cross-site Scripting (XSS) - Reflected in GitHub repository cockpit-hq/cockpit prior to 2.6.4.

02Affected products

Vendor	Product	Versions
cockpit-hq	cockpit	hq/cockpit — 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: 2023-08-20T14:04:35.553Z
• Last modified: 2026-02-13T16:35:47.227Z

09References

• huntr.dev — https://huntr.dev/bounties/4e111c3e-6cf3-4b4c-b3c1-a540bf30f8fa
• github.com — https://github.com/cockpit-hq/cockpit/commit/30609466c817e39f9de1871559603e93cd4…