What’s Vulnerable › Vulnerabilities

CVE-2023-5243: Login screen manager <= 3.5.2 - Admin+ Stored XSS

• Severity: medium (CVSS 4.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-10-31 · updated 2026-06-17
• Weakness: CWE-79

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).

Affected products

• Login Screen Manager: through 3.5.2

References

• https://wpscan.com/vulnerability/ad895200-a03a-4e92-b256-d6991547d38a
• https://wpscan.com/vulnerability/ad895200-a03a-4e92-b256-d6991547d38a

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