Group-Office: Self XSS in GroupOffice Installer License Page (install/license.php)
Priority MEDIUM 44CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Active
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
Group-Office is an enterprise customer relationship management and groupware tool. Prior to versions 6.8.155, 25.0.88, and 26.0.10, there is a reflected XSS vulnerability in the GroupOffice installer, endpoint install/license.php. The POST field license is rendered without escaping inside a <textarea>, allowing a </textarea><script>...</script> breakout.. This issue has been patched in versions 6.8.155, 25.0.88, and 26.0.10.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00262 18th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed groupoffice (Intermesh): 6.8.155, 25.0.88, 26.0.10
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 |
|---|---|---|---|---|---|
| Intermesh | groupoffice | before 6.8.155; before 25.0.88; before 26.0.10 | 6.8.155, 25.0.88, 26.0.10 | Patch available | CNA |
- groupoffice VendorIntermesh Affected before 6.8.155; before 25.0.88; before 26.0.10 Fixed in 6.8.155, 25.0.88, 26.0.10 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:intermesh:group-office:*:*:*:*:*:*:*:* | before 6.8.155; 25.0.1 to before 25.0.88; 25.2.1 to before 26.0.10 | Vulnerable | Intermesh |
- cpe:2.3:a:intermesh:group-office:*:*:*:*:*:*:*:* Versions before 6.8.155; 25.0.1 to before 25.0.88; 25.2.1 to before 26.0.10 Vulnerable ·Intermesh
Remediation
- Fix · CNA groupoffice (Intermesh) Fixed in 6.8.155, 25.0.88, 26.0.10
Timeline
- 2026-10-02 Threatist record created from CVE-2026-30237
More Intermesh Group-office vulnerabilities
- TI-2025-30692 GroupOffice's Blind Stored XSS in Phone Number Field Enables Forced Redirect and Unauthorized Actions CVSS 4.0MEDIUM 6.9
- TI-2025-30694 GroupOffice's DOM-Based XSS in all Date Input Fields Allows Arbitrary JavaScript Execution CVSS 4.0MEDIUM 5.8
- TI-2025-31121 Group-Office vulnerable to reflected XSS via Look and Feel Formatting input CVSS 4.0MEDIUM 5.3
- TI-2025-31120 Group-Office vulnerable to blind XSS CVSS 4.0MEDIUM 5.2
- TI-2025-30695 GroupOffice vulnerable to Stored XSS in Tasks Comment Section CVSS 4.0MEDIUM 5.3
- TI-2026-23471 Group-Office: Reflected XSS in JavaScript context CVSS 4.0MEDIUM 5.1
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences