CVE-2023-38551

HIGHNVD 8.28.2—

8.2

A CRLF Injection vulnerability in Ivanti Connect Secure (9.x, 22.x) allows an authenticated high-privileged user to inject malicious code on a victim’s browser, thereby leading to cross-site scripting attack.

CVSS v3: 8.2
EG Score: 8.2(medium)
EPSS: 69.3%
KEV: Not listed

Published

May 31, 2024

Last Modified

April 15, 2026

References (2)

support@hackeronehttps://forums.ivanti.com/s/article/Security-Advisory-May-2024
af854a3a-2127-422b-91ae-364da2661108https://forums.ivanti.com/s/article/Security-Advisory-May-2024

Weakness Classification(1)

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

CWE-93CRLF Injection

Data Freshness Timeline

(refreshed 14× in last 7d / 20× 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.

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Frequently asked(5)

What is CVE-2023-38551?

CVE-2023-38551 is a high vulnerability published on May 31, 2024. A CRLF Injection vulnerability in Ivanti Connect Secure (9.x, 22.x) allows an authenticated high-privileged user to inject malicious code on a victim’s browser, thereby leading to cross-site scripting attack.

When was CVE-2023-38551 disclosed?

CVE-2023-38551 was first published in the National Vulnerability Database on May 31, 2024, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2023-38551 actively exploited?

CVE-2023-38551 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 69.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2023-38551?

CVE-2023-38551 has a CVSS v3 base score of 8.2 (NVD).

How do I remediate CVE-2023-38551?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-38551, 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

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CVE-2023-38551

📅 Published

🔄 Last Modified

🔗 References (2)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2023-38551?

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Published

Last Modified

References (2)

Frequently asked(5)

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