CVE-2026-102778: CWE-352 Cross-Site Request Forgery (CSRF) in svenbluege.de Event Gallery for Joomla
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.
CVSS v4.0
Score 5.3medium
Affected software
svenbluege.de
Event Gallery for Joomla
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Event Gallery extension for Joomla versions 1.0.0 to 6.6.0 contains a cross-site scripting and open redirect vulnerability on its share mini page. When the "Share article links" option is enabled, the extension uses the article URL from the shared image link without validation or escaping, leading to script injection or redirection attacks. This vulnerability is classified under CWE-352 (Cross-Site Request Forgery) and CWE-601 (Open Redirect). The CVSS 4.0 base score is 5.3, indicating medium severity, with network attack vector, low complexity, no privileges required, user interaction required, and low impact on confidentiality and integrity.
Potential Impact
An attacker can craft a malicious shared image link that, when opened by a user, executes arbitrary scripts in the user's browser session or redirects the user to an external malicious website. This can lead to session hijacking, phishing, or other client-side attacks. The vulnerability does not allow modification or access to server-side data.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, users should consider disabling the "Share article links" option to prevent the vulnerability from being exploitable. Avoid clicking on untrusted shared image links from this extension.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Joomla
- Date Reserved
- 2026-09-29T16:46:15.044Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ac3ce172cdf04f65618b274
Added to database: 10/05/2026, 16:19:35 UTC
Last enriched: 10/05/2026, 16:33:40 UTC
Last updated: 10/05/2026, 21:24:57 UTC
Views: 12
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