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2.1
CVE-2026-96739: SEMCMS lets attackers run scripts via image upload
CVE-2026-96739 · published 25 days ago
Summary
The SEMCMS web platform (versions up to 4.2) has a weakness in its image upload feature. An attacker can trick the system into inserting malicious code that runs in a user's browser, potentially stealing data or hijacking sessions. Apply the vendor's patch or disable the vulnerable upload function until it is fixed.
What to do
The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| – | semcms | 4.0 |
Original advisory text
SEMCMS KindEditor Upload upload_json.php cross site scripting
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.
Internet-facing
60 days
Internal
At next upgrade
- Not known to be exploited
- Needs hands-on effort to exploit
- Gives an attacker partial control
Severity
2.1
Low
Type
CWE-79Cross-site Scripting (XSS)
CWE-94Code Injection
Timeline
Published24 Sep 2026
Updated19 Oct 2026
First seen23 Sep 2026
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