CVE-2023-4451

MEDIUMNVD 6.16.1—Weaponized

6.1

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

CVSS v3: 6.1
EG Score: 6.1(medium)
EPSS: 97.9%
KEV: Not listed

Published

August 20, 2023

Last Modified

February 13, 2026

References (5)

security@huntrhttps://github.com/cockpit-hq/cockpit/commit/30609466c817e39f9de1871559603e93cd4d0d0c
security@huntrhttps://huntr.dev/bounties/4e111c3e-6cf3-4b4c-b3c1-a540bf30f8fa
af854a3a-2127-422b-91ae-364da2661108https://github.com/MarkLee131/awesome-web-pocs/blob/main/CVE-2023-4451.md
af854a3a-2127-422b-91ae-364da2661108https://github.com/cockpit-hq/cockpit/commit/30609466c817e39f9de1871559603e93cd4d0d0c
af854a3a-2127-422b-91ae-364da2661108https://huntr.dev/bounties/4e111c3e-6cf3-4b4c-b3c1-a540bf30f8fa

Patch Availability(1)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
composer	cockpit-hq/cockpit	—	ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)

Packagist(1)

Package	Vulnerable range	Fixed in	Dependents
cockpit-hq/cockpit	2.0.0 ... 2.6.3 (28 versions)	—	—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-79Cross-site Scripting (XSS)

Data Freshness Timeline

(refreshed 8× in last 7d / 15× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:12 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-29 13:43 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-24 19:04 UTCEG score recompute
2026-05-24 19:04 UTCGHSA enrichment

Publicly available exploits

(1 reference)

Working exploit code is in the public domain. Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

Nucleihttp/cves/2023/CVE-2023-4451.yaml
First seen Jan 1, 2023
Cockpit - Cross-Site Scripting
Open source ↗

Frequently asked(5)

What is CVE-2023-4451?

CVE-2023-4451 is a medium vulnerability published on August 20, 2023. Cross-site Scripting (XSS) - Reflected in GitHub repository cockpit-hq/cockpit prior to 2.6.4.

When was CVE-2023-4451 disclosed?

CVE-2023-4451 was first published in the National Vulnerability Database on August 20, 2023, with the most recent update on February 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2023-4451 actively exploited?

CVE-2023-4451 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 97.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2023-4451?

CVE-2023-4451 has a CVSS v3 base score of 6.1 (NVD).

How do I remediate CVE-2023-4451?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-4451, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2023-4451

Explore →

Is Your Infrastructure Affected by CVE-2023-4451?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs

CVE-2023-4451

Published

Last Modified

References (5)

Patch Availability(1)

Affected Packages

Weakness Classification(1)

Data Freshness Timeline

Publicly available exploits

Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2023-4451?

Same product

Same CWE

CVE-2023-4451

📅 Published

🔄 Last Modified

🔗 References (5)

Patch Availability(1)

Affected Packages

Weakness Classification(1)

Data Freshness Timeline

Publicly available exploits

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2023-4451?

🔗 Related CVEs(same product + same CWE)

Same product

Same CWE

Published

Last Modified

References (5)

Frequently asked(5)

Related CVEs(same product + same CWE)