CVE-2026-116100— gougucms User Level Level.php add cross site scripting

Quick assessment

Affected

n/a gougucms

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 GouGuCMS 4.08.18 及更早版本中发现一个漏洞。受影响的是组件“用户等级处理器”中文件的函数。攻击者可通过操纵参数引发跨站脚本（XSS）攻击。该攻击可远程实施。利用代码已公开披露，可能被恶意使用。厂商已就此事在早期被联系，但至今未作任何回应。

CVSS 2.4 · Low Updated Oct 26, 2026

Possible ATT&CK Techniques 2 AI

T1055.002 · Portable Executable Injection T1190 · Exploit Public-Facing Application

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Vulnerability Information

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Vulnerability Title

gougucms User Level Level.php add cross site scripting

Source: CVE Program / CVE List V5

Vulnerability Description

A vulnerability has been found in gougucms up to 4.08.18. Impacted is the function Add of the file app/admin/controller/Level.php of the component User Level Handler. The manipulation of the argument Title leads to cross site scripting. The attack is possible to be carried out remotely. The exploit has been disclosed to the public 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:H/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
-	gougucms	4.08.0	`cpe:2.3:a:gougucms:gougucms::::::::`

II. Public POCs for CVE-2026-116100

#	POC Description	Source Link	Shenlong Link

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No public POC found.

III. Intelligence Information for CVE-2026-116100

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Other References for CVE-2026-116100 (4)

https://github.com/yuhuixiaowu/cve/blob/main/gougucms_v4.08.18_XSS.md exploit
https://vuldb.com/cve/CVE-2026-116100 third-party-advisory
https://vuldb.com/vuln/426168/cti signature permissions-required
https://vuldb.com/submit/1002525 third-party-advisory

https://www.cve.org/CVERecord?id=CVE-2026-116100

Same Patch Batch · n/a · 2026-10-26 · 3 CVEs total

CVE-2026-116106	7.3 HIGH	HeyCyan App FileProvider access control
CVE-2026-116105	3.7 LOW	HeyCyan App Network Security Configuration AndroidManifest.xml cleartext transmission

IV. Related Vulnerabilities

Same product: gougucms

Same vendor: n/a

Same weakness: CWE-79