CVE-2023-4958

Name: CVE-2023-4958
Creator: NVD / NIST
Published: 2023-12-12T10:15:10.853+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.53%

Last modified Jun 17, 2026

CVE-2023-4958 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. 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.. EPSS estimates a 0.53% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

0.53%

40.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Redhat	Advanced Cluster Security	3.0
Redhat	Advanced Cluster Security	4.0

References

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

Timeline

Published: Dec 12, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-4958?

How severe is CVE-2023-4958?

CVE-2023-4958 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.53% probability of exploitation in the next 30 days.

How do I fix CVE-2023-4958?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-4958?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST