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CVE-2025-27609— Icinga Web 2 Vulnerable to Reflected XSS

Quick assessment

Affected
Icinga icingaweb2
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Icinga Web 2是Icinga开源的一个开源监控和度量解决方案。 Icinga Web 2 2.11.5之前版本和2.12.13之前版本存在跨站脚本漏洞，该漏洞源于可嵌入任意Javascript，可能导致用户身份冒用。

AI Predicted 6.1 Difficulty: Easy EPSS 0.24% · P16
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I. Basic Information for CVE-2025-27609

Vulnerability Information
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Vulnerability Title
Icinga Web 2 Vulnerable to Reflected XSS
Source: CVE Program / CVE List V5
Vulnerability Description
Icinga Web 2 is an open source monitoring web interface, framework and command-line interface. A vulnerability in versions prior to 2.11.5 and 2.12.13 allows an attacker to craft a request that, once transmitted to a victim's Icinga Web, allows to embed arbitrary Javascript into it and to act on behalf of that user. This issue has been resolved in versions 2.11.5 and 2.12.3 of Icinga Web 2. As a workaround, those who have Icinga Web 2.12.2 may enable a content security policy in the application settings. Any modern browser with a working CORS implementation also sufficiently guards against the vulnerability.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U
Source: CVE Program / CVE List V5
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: CVE Program / CVE List V5
Vulnerability Title
Icinga Web 2 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Icinga Web 2是Icinga开源的一个开源监控和度量解决方案。 Icinga Web 2 2.11.5之前版本和2.12.13之前版本存在跨站脚本漏洞，该漏洞源于可嵌入任意Javascript，可能导致用户身份冒用。
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
Icinga icingaweb2 < 2.11.5 -

II. Public POCs for CVE-2025-27609

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III. Intelligence Information for CVE-2025-27609

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Vendor Advisories for CVE-2025-27609 (1)

Vendor Pages for CVE-2025-27609 (1)

Other References for CVE-2025-27609 (1)

Same Patch Batch · Icinga · 2025-03-26 · 6 CVEs total

CVE-2025-27404 7.7 HIGH Icinga Web 2 DOM-based XSS vulnerability
CVE-2025-27405 7.7 HIGH Icinga Web 2 has XSS in embedded content
CVE-2025-27406 7.7 HIGH Icinga Reporting Stored XSS leads to SSRF
CVE-2025-23203 5.5 MEDIUM Icinga has rest API endpoints accessible to restricted users
CVE-2025-30164 4.1 MEDIUM Icinga Web 2 has open redirect on login page

IV. Related Vulnerabilities

Same product: icingaweb2
Same vendor: Icinga
Same weakness: CWE-79

V. Comments for CVE-2025-27609

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