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CVE-2026-102778— Joomla Extension - svenbluege.de - Cross-site scripting and open redirect on the share mini page in Event Gallery extension < 6.6.0

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 < 6.6.0）中的跨站脚本（XSS）和开放重定向漏洞 – 当启用“共享文章链接”选项时，共享图片链接所打开的页面（即前端的共享迷你页面）会指向图片所属的文章。该页面从共享链接中获取文章地址，并在未进行任何校验或转义的情况下将其直接输出到页面上。当链接类型设置为“带有重定向的图片页面”时，系统会立即跟随该地址进行重定向。因此，攻击者可以构造恶意链接，在访问者会话中执行脚本，或将访问者重定向至其他恶意网站。该漏洞不会改变或

CVSS 5.3 · Medium

Affected Version Matrix 1

VendorProduct Version RangeStatus
svenbluege.de Event Gallery for Joomla 1.0.0-6.6.0 affected
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I. Basic Information for CVE-2026-102778

Vulnerability Information
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Vulnerability Title
Joomla Extension - svenbluege.de - Cross-site scripting and open redirect on the share mini page in Event Gallery extension < 6.6.0
Source: CVE Program / CVE List V5
Vulnerability Description
Joomla Extension - svenbluege.de - Cross-site scripting and open redirect on the share mini page in Event Gallery extension < 6.6.0 - The page a shared image link opens (the share mini page of the front end) can link the article the image was shared from when the option "Share article links" is on. It took the address of the article from the shared link and printed it into the page without checking or escaping it; with the link type "Image Page with Redirect" it followed the address at once. A prepared link could therefore run a script in the page, in the session of the visitor who opened it, or send the visitor to another web site. Nothing on the server is changed or read by the server.
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: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 1.0.0-6.6.0 -

II. Public POCs for CVE-2026-102778

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III. Intelligence Information for CVE-2026-102778

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Other References for CVE-2026-102778 (1)

Same Patch Batch · svenbluege.de · 2026-10-05 · 3 CVEs total

CVE-2026-102777 6.3 MEDIUM Joomla Extension - svenbluege.de - Server-side request forgery in the Google Photos picker
CVE-2026-102776 5.1 MEDIUM Joomla Extension - svenbluege.de - Cross-site request forgery of list tasks of the backend

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-102778

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