VYPR
Unrated severityOSV Advisory· Published Dec 15, 2025· Updated Apr 7, 2026

Blackcat CMS 1.4 Stored Cross-Site Scripting via Page Modification

CVE-2023-53891

Description

Blackcat CMS 1.4 contains a stored cross-site scripting vulnerability that allows authenticated users to inject malicious scripts into page content. Attackers can insert JavaScript payloads in the page modification interface that execute when other users view the compromised page.

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Affected products

2

Patches

Vulnerability mechanics

References

3

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