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CVE-2026-112204— Reflected XSS in WidzialniCMS

Quick assessment

Affected
Fundacja Widzialni WidzialniCMS
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.

WidzialniCMS 的 接口存在反射型跨站脚本（XSS）漏洞。攻击者可构造恶意 URL，当受害者访问该链接时，其浏览器将执行任意 JavaScript 代码，从而导致会话 Cookie 被盗等安全风险。 该问题已在版本 2.5 中修复。

CVSS 5.1 · Medium

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
Fundacja Widzialni WidzialniCMS < 2.5 affected
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I. Basic Information for CVE-2026-112204

Vulnerability Information
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Vulnerability Title
Reflected XSS in WidzialniCMS
Source: CVE Program / CVE List V5
Vulnerability Description
WidzialniCMS is vulnerable to Reflected XSS in the /index.php endpoint. An attacker can prepare an URL that, when opened, results in arbitrary JavaScript execution in the victim's browser, allowing e.g session cookie theft. This issue has been fixed in version 2.5.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA: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

Affected Products

Vendor Product Affected Versions CPE Subscribe
Fundacja Widzialni WidzialniCMS 0 ~ 2.5 -

II. Public POCs for CVE-2026-112204

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-112204

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Security Blog Posts for CVE-2026-112204 (1)

Vendor Pages for CVE-2026-112204 (1)

Same Patch Batch · Fundacja Widzialni · 2026-11-09 · 4 CVEs total

CVE-2026-110468 10.0 CRITICAL Remote Code Execution via Unrestricted File Upload in WidzialniCMS
CVE-2026-110469 10.0 CRITICAL Remote Code Execution via Unrestricted File Upload in WidzialniCMS
CVE-2026-112205 6.9 MEDIUM Bruteforce Protection Bypass in WidzialniCMS

IV. Related Vulnerabilities

Same product: WidzialniCMS
Same vendor: Fundacja Widzialni
Same weakness: CWE-79