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

Quick assessment

Affected
n/a SEMCMS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 SEMCMS 4.2 及更早版本中发现了一个漏洞。该漏洞影响 KindEditor 上传接口组件中文件 /Edit/php/upload_json.php 的某些未知功能。通过对参数 imgFile 的操作，可导致跨站脚本攻击（XSS）。该攻击可远程发起，且相关利用代码已公开发布，可被实际使用。尽管厂商在此披露发生前已收到通知，但未作出任何回应。

CVSS 4.3 · Medium EPSS 0.26% · P16

Affected Version Matrix 3

VendorProduct Version RangeStatus
n/a SEMCMS 4.0 affected
4.1 affected
4.2 affected
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I. Basic Information for CVE-2026-96739

Vulnerability Information
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Vulnerability Title
SEMCMS KindEditor Upload upload_json.php cross site scripting
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
- SEMCMS 4.0 cpe:2.3:a:semcms:semcms:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-96739

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III. Intelligence Information for CVE-2026-96739

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Proof of Concept for CVE-2026-96739 (1)

Same Patch Batch · n/a · 2026-09-23 · 9 CVEs total

CVE-2026-19888 7.5 HIGH NULL pointer dereference in SCRAM client-final-message parsing in PgBouncer
CVE-2026-6668 7.5 HIGH Integer overflow causes an infinite loop in packet buffer growth in PgBouncer
CVE-2026-79304 6.5 MEDIUM CyberPanel 1.9.1 路径遍历漏洞
CVE-2026-79306 6.5 MEDIUM CyberPanel v1.9.1 文件管理器路径遍历漏洞
CVE-2026-6669 5.9 MEDIUM Unbounded SCRAM iteration count causes CPU exhaustion in PgBouncer
CVE-2026-95897 5.5 MEDIUM Dask Loader core.py from_npy_stack deserialization
CVE-2026-79310 web.py 0.76 服务端模板注入漏洞
CVE-2025-63564 Moodle Socialwall 3.0-3.3 SQL注入漏洞

IV. Related Vulnerabilities

Same product: SEMCMS
Same vendor: n/a
Same weakness: CWE-79

V. Comments for CVE-2026-96739

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