CVE-2026-45551— Group-Office: Authenticated Stored XSS in Administrator Context via Arbitrary Cross-User Setting Write
Affected Version Matrix 3
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Intermesh | groupoffice | >= 26.0.1, < 26.0.25 | affected |
>= 25.0.1, < 25.0.1005 | affected | ||
< 6.8.165 | affected |
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I. Basic Information for CVE-2026-45551
Vulnerability Information
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Vulnerability Title
Group-Office: Authenticated Stored XSS in Administrator Context via Arbitrary Cross-User Setting Write
Source: NVD (National Vulnerability Database)
Vulnerability Description
Group-Office is an enterprise customer relationship management and groupware tool. Prior to 26.0.25, 25.0.100, and 6.8.165, GroupOffice allows authenticated users to persist arbitrary legacy settings for any user_id via index.php?r=core/saveSetting. A separate client-side sink in the email module injects the email_font_size setting directly into JavaScript without escaping. By combining these two issues, any low-privileged authenticated user can overwrite an administrator's email_font_size setting with a JavaScript payload and trigger stored XSS in the administrator's browser when the GroupOffice web client loads views/Extjs3/modulescripts.php. This vulnerability is fixed in 26.0.25, 25.0.100, and 6.8.165.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Intermesh | groupoffice | >= 26.0.1, < 26.0.25 | - |
II. Public POCs for CVE-2026-45551
| # | POC Description | Source Link | Shenlong Link |
|---|
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No public POC found.
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Vendor Advisories for CVE-2026-45551 (1)
IV. Related Vulnerabilities
Same product: groupoffice
- CVE-2026-34838
Group-Office: Authenticated Remote Code Execution via PHP In - CVE-2026-33755
Authenticated SQL Injection in Contact/query addressBookIds - CVE-2026-30238
Group-Office: Reflected XSS in JavaScript context - CVE-2026-30237
Group-Office: Self XSS in GroupOffice Installer License Page - CVE-2026-27947
Group-Office Vulnerable to Remote Code Execution (RCE)
Same vendor: Intermesh
- CVE-2026-34838
Group-Office: Authenticated Remote Code Execution via PHP In - CVE-2026-33755
Authenticated SQL Injection in Contact/query addressBookIds - CVE-2026-30238
Group-Office: Reflected XSS in JavaScript context - CVE-2026-30237
Group-Office: Self XSS in GroupOffice Installer License Page - CVE-2026-27947
Group-Office Vulnerable to Remote Code Execution (RCE)
Same weakness: CWE-79
- CVE-2026-10112
sambitraj STUDENT-MANAGEMENT-SYSTEM Dashboard cross site scr - CVE-2026-34127
Stored Cross-Site Scripting (XSS) via Configuration File Imp - CVE-2026-49384
PyCharm < 2025.3.4 Jupyter笔记存储型XSS漏洞 - CVE-2026-49381
JetBrains TeamCity <2026.1 SAML登录页面存储型XSS漏洞 - CVE-2026-49375
TeamCity<2026.1.2025.11.5仓库下载页反射型XSS
V. Comments for CVE-2026-45551
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