CVE-2026-52307

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-09-08 · updated 2026-09-14
Weakness: CWE-79

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.

References

http://classcms.com
https://github.com/linan-OO/CVE-2026-52307
http://seclists.org/fulldisclosure/2026/Sep/31

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