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CVE-2026-100747— Joomla Extension - svenbluege.de - CSRF in image upload in Event Gallery extension < 6.5.0

Quick assessment

Affected
svenbluege.de Event Gallery 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 - svenbluege.de - Event Gallery 扩展（版本 < 6.5.0）中的图像上传存在跨站请求伪造（CSRF）漏洞。由于缺乏 CSRF 令牌验证，第三方网站可以向事件上传文件，并使用同名文件覆盖现有文件。

CVSS 5.1 · Medium

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-100747

Vulnerability Information
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Vulnerability Title
Joomla Extension - svenbluege.de - CSRF in image upload in Event Gallery extension < 6.5.0
Source: CVE Program / CVE List V5
Vulnerability Description
Joomla Extension - svenbluege.de - CSRF in image upload in Event Gallery extension < 6.5.0 - Due to lack of an CSRF token check, a third-party site can upload files to an event and overwrite existing files with the same name.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
跨站请求伪造(CSRF)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
svenbluege.de Event Gallery for Joomla 1.0.0-6.0.0 -

II. Public POCs for CVE-2026-100747

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III. Intelligence Information for CVE-2026-100747

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Other References for CVE-2026-100747 (1)

Same Patch Batch · svenbluege.de · 2026-09-27 · 5 CVEs total

CVE-2026-97164 7.0 HIGH Joomla Extension - svenbluege.de - Path Traversal in Clear Cache task in Event Gallery ext
CVE-2026-100748 6.9 MEDIUM Joomla Extension - svenbluege.de - CSRF in various cart actions in Event Gallery extension
CVE-2026-97165 5.3 MEDIUM Joomla Extension - svenbluege.de - Reflected XSS and open redirect in Event Gallery extens
CVE-2026-100749 5.1 MEDIUM Joomla Extension - svenbluege.de - CSRF in backend cleanup actions in Event Gallery extens

IV. Related Vulnerabilities

Same product: Event Gallery for Joomla
Same vendor: svenbluege.de
Same weakness: CWE-352

V. Comments for CVE-2026-100747

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