CVE-2026-52307
Medium
Description
An authenticated stored cross-site scripting (XSS) vulnerability in the Column Management component of ClassCMS 1CMS v5.6 allows attackers to execute arbitrary web scripts or HTML via injecting a crafted payload into the title field.
SeverityMedium
CVSS5.4
Exploit probability—
Product1CMS
PublishedSep 8, 2026
First seenSep 8, 2026
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| ClassCMS 1CMS | 5.6 | — |
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