CVE-2026-52307

5.4 mediumEPSS 0.3%

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.

Severity

CVSS 3.1

5.4 medium

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

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 21% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2026-09-08
Modified: 2026-09-14
Record from: the NVD, synced 2026-10-19

References

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

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