Cross-site scripting in gougucms User Level Add function
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- Passive
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Cross-site scripting, Code execution
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79 and CWE-94.
Summary
gougucms versions 4.08.0 through 4.08.18 are affected. The Add function in app/admin/controller/Level.php does not neutralize the Title argument, which allows cross-site scripting (CWE-79). A remote attacker with high privileges can trigger it, and a user must interact with the page. A public exploit has been disclosed and may be used.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | gougucms | 4.08.0; 4.08.1; 4.08.2; 4.08.3; 4.08.4; 4.08.5; 4.08.6; 4.08.7; 4.08.8; 4.08.9; 4.08.10; 4.08.11; 4.08.12; 4.08.13; 4.08.14; 4.08.15; 4.08.16; 4.08.17; 4.08.18 | — | No fix listed | CNA |
- gougucms Vendor— Affected 4.08.0; 4.08.1; 4.08.2; 4.08.3; 4.08.4; 4.08.5; 4.08.6; 4.08.7; 4.08.8; 4.08.9; 4.08.10; 4.08.11; 4.08.12; 4.08.13; 4.08.14; 4.08.15; 4.08.16; 4.08.17; 4.08.18 Fixed in — No fix listed CNA
Remediation
The sources list no fixed version for gougucms.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Timeline
- 2026-10-26 Threatist record created from CVE-2026-116100
- 2026-10-27 Alias added: GHSA-9wwg-c5q6-j74r
- 2026-10-29 CISA SSVC decision points changed
- 2026-10-29 Priority changed: LOW → MEDIUM
References
Sources
- CVE-2026-116100 · CVE Program
- CVE-2026-116100 · NVD
- FIRST EPSS
- GHSA-9wwg-c5q6-j74r · GitHub Advisory Database · CC BY 4.0
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