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CVE-2025-27825

Quick assessment

Affected
backdropcms Bootstrap 5 Lite theme
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.

Backdrop CMS是Backdrop CMS开源的一个内容管理系统（CMS）。 Backdrop CMS 1.x-1.0.3之前版本存在跨站脚本漏洞，该漏洞源于某些类名清理不足，可能导致跨站脚本攻击。

CVSS 6.4 · Medium EPSS 0.23% · P13

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2025-27825

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An XSS issue was discovered in the Bootstrap 5 Lite theme before 1.x-1.0.3 for Backdrop CMS. It doesn't sufficiently sanitize certain class names.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
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
Backdrop CMS 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Backdrop CMS是Backdrop CMS开源的一个内容管理系统（CMS）。 Backdrop CMS 1.x-1.0.3之前版本存在跨站脚本漏洞，该漏洞源于某些类名清理不足，可能导致跨站脚本攻击。
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
backdropcms Bootstrap 5 Lite theme 0 ~ 1.x-1.0.3 -

II. Public POCs for CVE-2025-27825

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III. Intelligence Information for CVE-2025-27825

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Vendor Advisories for CVE-2025-27825 (1)

Same Patch Batch · backdropcms · 2025-03-07 · 5 CVEs total

CVE-2025-27822 7.5 HIGH Backdrop CMS 安全漏洞
CVE-2025-27824 6.4 MEDIUM Backdrop CMS 跨站脚本漏洞
CVE-2025-27826 6.4 MEDIUM Backdrop CMS 跨站脚本漏洞
CVE-2025-27823 6.4 MEDIUM Backdrop CMS 跨站脚本漏洞

IV. Related Vulnerabilities

Same vendor: backdropcms
Same weakness: CWE-79

V. Comments for CVE-2025-27825

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