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CVE-2026-102786— Joomla Extension - phoca.cz - Authenticated stored cross-site scripting through HTML attribute injection in Phoca Gallery 4.5.0 - 6.1.5

Quick assessment

Affected
phoca.cz Phoca Gallery 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 扩展组件 - phoca.cz：Phoca Gallery 4.5.0 至 6.1.5 版本中存在一个经过身份验证的存储型跨站脚本（Stored XSS）漏洞，攻击者可通过 HTML 属性注入利用该漏洞。

CVSS 8.6 · High

Possible ATT&CK Techniques 1 AI

T1059.007 · JavaScript

Affected Version Matrix 1

VendorProduct Version RangeStatus
phoca.cz Phoca Gallery extension for Joomla 4.5.0-6.1.5 affected
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I. Basic Information for CVE-2026-102786

Vulnerability Information
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Vulnerability Title
Joomla Extension - phoca.cz - Authenticated stored cross-site scripting through HTML attribute injection in Phoca Gallery 4.5.0 - 6.1.5
Source: CVE Program / CVE List V5
Vulnerability Description
Joomla Extension - phoca.cz - Authenticated stored cross-site scripting through HTML attribute injection in Phoca Gallery 4.5.0 - 6.1.5
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/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
phoca.cz Phoca Gallery extension for Joomla 4.5.0-6.1.5 -

II. Public POCs for CVE-2026-102786

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-102786

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Vendor Pages for CVE-2026-102786 (1)

IV. Related Vulnerabilities

Same vendor: phoca.cz
Same weakness: CWE-79

V. Comments for CVE-2026-102786

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