CVE-2026-77993— Joomla Extension - joomlack.fr - Reflected XSS in Page Builder CK < 3.6.5
Quick assessment
Affected
joomlack.fr Page Builder CK extension for Joomla
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.
Joomla扩展 - joomlack.fr - Page Builder CK < 3.6.5 中存在反射型XSS漏洞 - Joomla扩展Page Builder CK 存在一个反射型跨站脚本（XSS）漏洞，该漏洞可通过 参数触发。
Possible ATT&CK Techniques 2 AI
T1059 · Command and Scripting Interpreter T1189 · Drive-by CompromiseAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| joomlack.fr | Page Builder CK extension for Joomla | 1.0.0-3.6.4 |
affected |
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I. Basic Information for CVE-2026-77993
Vulnerability Information
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Vulnerability Title
Joomla Extension - joomlack.fr - Reflected XSS in Page Builder CK < 3.6.5
Source: CVE Program / CVE List V5
Vulnerability Description
Joomla Extension - joomlack.fr - Reflected XSS in Page Builder CK < 3.6.5 - The Joomla extension Page Builder CK is vulnerable to a reflected XSS via the iscontenttype parameter.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/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 |
|---|---|---|---|---|
| joomlack.fr | Page Builder CK extension for Joomla | 1.0.0-3.6.4 | - |
|
II. Public POCs for CVE-2026-77993
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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No public POC found.
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Security Blog Posts for CVE-2026-77993 (1)
IV. Related Vulnerabilities
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V. Comments for CVE-2026-77993
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