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Vulnerability record · CVE-2023-4958 · published 12 December 2023

CVE-2023-4958: Redhat advanced cluster security clickjacking vulnerability

Redhat · Advanced Cluster Security

In Red Hat Advanced Cluster Security (RHACS), it was found that some security related HTTP headers were missing, allowing an attacker to exploit this with a clickjacking attack. An attacker could exploit this by convincing a valid RHACS user to visit an attacker-controlled web page, that deceptively points to valid RHACS endpoints, hijacking the user's account permissions to perform other actions.

6.1 CVSS 3.1 Medium EPSS 0.63% · top 51.7% CWE-1021 · Clickjacking
6.1CVSS 3.1 base score
0.63%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

In Red Hat Advanced Cluster Security (RHACS), it was found that some security related HTTP headers were missing, allowing an attacker to exploit this with a clickjacking attack. An attacker could exploit this by convincing a valid RHACS user to visit an attacker-controlled web page, that deceptively points to valid RHACS endpoints, hijacking the user's account permissions to perform other actions.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://access.redhat.com/errata/RHSA-2023:5206 Vendor Advisory
https://access.redhat.com/security/cve/CVE-2023-4958 Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1990363 Issue TrackingPatch
https://access.redhat.com/errata/RHSA-2023:5206 Vendor Advisory
https://access.redhat.com/security/cve/CVE-2023-4958 Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1990363 Issue TrackingPatch

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2023-4958), CISA KEV, FIRST EPSS (scores of 2026-10-02). This page is refreshed as NVD updates the record.