CVE-2023-5243

Name: CVE-2023-5243
Creator: NVD / NIST
Published: 2023-10-31T14:15:12.633+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.8/10EPSS 0.38%

Last modified Jun 17, 2026

CVE-2023-5243 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. The Login Screen Manager WordPress plugin through 3.5.2 does not sanitize and escape some of its settings, which could allow high-privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup).. EPSS estimates a 0.38% chance of exploitation in the next 30 days.

Description

The Login Screen Manager WordPress plugin through 3.5.2 does not sanitize and escape some of its settings, which could allow high-privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup).

Metrics

CVSS 3.1

4.8/10

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

EPSS Probability

0.38%

29.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Login Screen Manager Project	Login Screen Manager	<= 3.5.2

References

https://wpscan.com/vulnerability/ad895200-a03a-4e92-b256-d6991547d38aExploit, Third Party Advisory
https://wpscan.com/vulnerability/ad895200-a03a-4e92-b256-d6991547d38aExploit, Third Party Advisory

Timeline

Published: Oct 31, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-5243?

How severe is CVE-2023-5243?

CVE-2023-5243 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 0.38% probability of exploitation in the next 30 days.

How do I fix CVE-2023-5243?

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-2023-5243?

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

Scan your code now

Source: NVD / NIST