CVE-2026-8078— Fix stored XSS in global settings change log
Possible ATT&CK Techniques 1AI
T1189 · Drive-by CompromiseAffected Version Matrix 4
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Checkmk GmbH | Checkmk | 2.5.0< 2.5.0p5 | affected |
2.4.0< 2.4.0p31 | affected | ||
2.3.0< 2.3.0p48 | affected | ||
2.2.0 | affected |
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I. Basic Information for CVE-2026-8078
Vulnerability Information
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Vulnerability Title
Fix stored XSS in global settings change log
Source: NVD (National Vulnerability Database)
Vulnerability Description
Stored cross-site scripting in the global settings change log in Checkmk <2.5.0p5, <2.4.0p31, <2.3.0p48, and all 2.2.0 versions allows an administrator who can change global settings to store malicious HTML or JavaScript in changelog messages that executes in other users' browsers when they view the Activate Changes page or Audit log.
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)
Vulnerability Title
Checkmk 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Checkmk是Checkmk公司的一个 IT 监控平台。 Checkmk 2.5.0p5之前版本、2.4.0p31之前版本、2.3.0p48之前版本和所有2.2.0版本存在跨站脚本漏洞，该漏洞源于全局设置更改日志中的存储型跨站脚本漏洞，允许可以更改全局设置的管理员在更改日志消息中存储恶意HTML或JavaScript，在其他用户查看激活更改页面或审计日志时执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Checkmk GmbH | Checkmk | 2.5.0 ~ 2.5.0p5 | - |
II. Public POCs for CVE-2026-8078
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2026-8078 (1)
- 🔗 Werk #17992: Fix stored XSS in global settings change logvendor-advisory
Same Patch Batch · Checkmk GmbH · 2026-06-08 · 5 CVEs total
| CVE-2026-7186 | Fix stored XSS in URL dashboard widget via dangerous URI schemes | |
| CVE-2026-7765 | User Messages widget leaked issuer messages on shared dashboards | |
| CVE-2026-9549 | Fix XSS in service discovery active check output | |
| CVE-2026-8833 | XSS in urls |
IV. Related Vulnerabilities
Same product: Checkmk
- CVE-2026-9549
Fix XSS in service discovery active check output - CVE-2026-8833
XSS in urls - CVE-2026-7765
User Messages widget leaked issuer messages on shared dashbo - CVE-2026-7186
Fix stored XSS in URL dashboard widget via dangerous URI sch - CVE-2024-47091
Privilege escalation via mk_mysql agent plugin on Windows
Same vendor: Checkmk GmbH
- CVE-2026-9549
Fix XSS in service discovery active check output - CVE-2026-8833
XSS in urls - CVE-2026-7765
User Messages widget leaked issuer messages on shared dashbo - CVE-2026-7186
Fix stored XSS in URL dashboard widget via dangerous URI sch - CVE-2024-47091
Privilege escalation via mk_mysql agent plugin on Windows
Same weakness: CWE-79
- CVE-2026-4322
XSS in Raera's Destekz - CVE-2026-9756
GenerateBlocks <= 2.2.1 - Authenticated (Contributor+) Store - CVE-2026-4804
Zakra <= 4.2.0 - Authenticated (Contributor+) Stored Cross-S - CVE-2026-9148
Comments <= 7.6.56 - Unauthenticated Stored Cross-Site Scrip - CVE-2026-8351
RTMKit <= 2.0.7 - Authenticated (Contributor+) Stored Cross-
V. Comments for CVE-2026-8078
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