CVE-2026-96739: SEMCMS KindEditor Upload upload_json.php cross site scripting

Severity: medium (CVSS 4.3 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: 2026-09-24 · updated 2026-09-24
Weakness: CWE-79

Description

A flaw has been found in SEMCMS up to 4.2. Affected by this issue is some unknown functionality of the file /Edit/php/upload_json.php of the component KindEditor Upload Interface. This manipulation of the argument imgFile causes cross site scripting. The attack may be initiated remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

SEMCMS: 4.0, 4.1, 4.2

References

https://github.com/CSDVi/cve/issues/7
https://vuldb.com/cve/CVE-2026-96739
https://vuldb.com/submit/904124
https://vuldb.com/vuln/409004
https://vuldb.com/vuln/409004/cti

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