CVE-2026-25511
Last modified
CVE-2026-25511 is a medium-severity vulnerability rated 4.9/10 on the CVSS scale. Group-Office is an enterprise customer relationship management and groupware tool. Prior to versions 6.8.150, 25.0.82, and 26.0.5, an authenticated user within the System Administrator group can trigger a full SSRF via the WOPI service discovery URL, including access to internal hosts/ports. EPSS estimates a 0.40% chance of exploitation in the next 30 days.
Description
Group-Office is an enterprise customer relationship management and groupware tool. Prior to versions 6.8.150, 25.0.82, and 26.0.5, an authenticated user within the System Administrator group can trigger a full SSRF via the WOPI service discovery URL, including access to internal hosts/ports. The SSRF response body can be exfiltrated via the built‑in debug system, turning it into a visible SSRF. This also allows full server-side file read. This issue has been patched in versions 6.8.150, 25.0.82, and 26.0.5.
Metrics
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Group-Office | Group Office | >= 6.8.0, < 6.8.150 |
| Group-Office | Group Office | >= 25.0.1, < 25.0.82 |
| Group-Office | Group Office | >= 26.0.1, < 26.0.5 |
References
- https://github.com/Intermesh/groupoffice/security/advisories/GHSA-r9v4-jm2r-r9pmExploit, Vendor Advisory
- https://github.com/Intermesh/groupoffice/security/advisories/GHSA-r9v4-jm2r-r9pmExploit, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-25511?
How severe is CVE-2026-25511?
How do I fix CVE-2026-25511?
How Strix Helps
- One Click Account Takeover in GranolaHow a notification link broke out of Electron and led to a one-click account takeover.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-25506MUNGE is an authentication service for creating and validati…7.8
- CVE-2026-25507ESF-IDF is the Espressif Internet of Things (IOT) Developmen…6.3
- CVE-2026-25508ESF-IDF is the Espressif Internet of Things (IOT) Developmen…6.3
- CVE-2026-25509CI4MS is a CodeIgniter 4-based CMS skeleton that delivers a …5.3
- CVE-2026-2551A vulnerability was determined in ZenTao up to 21.7.8. Affec…5.4
- CVE-2026-25510CI4MS is a CodeIgniter 4-based CMS skeleton that delivers a …8.8
- CVE-2026-25512Group-Office is an enterprise customer relationship manageme…8.8
- CVE-2026-25513FacturaScripts is open-source enterprise resource planning a…8.8
- CVE-2026-25514FacturaScripts is open-source enterprise resource planning a…8.8
- CVE-2026-25516NiceGUI is a Python-based UI framework. The ui.markdown() co…6.1
- CVE-2026-25517Wagtail is an open source content management system built on…2.7
- CVE-2026-25518cert-manager adds certificates and certificate issuers as re…5.9
Are you affected by CVE-2026-25511?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST