CVE-2026-97165
MediumCVSS 5.3Summary
Joomla Extension - svenbluege.de - Reflected XSS and open redirect in Event Gallery extension < 6.5.0 - The “return” parameter is base64-decoded and written to the “Back” link without being validated.
Risk Assessment
An attacker can trick a user into clicking a crafted link, potentially executing malicious script in the victim's browser or redirecting to a malicious site. This can lead to session theft or phishing.
Recommendation
Update the Event Gallery extension to version 6.5.0 or later, which validates the “return” parameter.
Other vulnerabilities in Event Gallery
See all- CVE-2026-97164High
Joomla Extension - svenbluege.de - Authenticated arbitrary path deletion in 'clear cache' task in Event Gallery extension < 6.5.0 - Using the 'images' parameter of the 'cache.process' task, you can recursively delete any directories that the web server is authorized to write to.
- CVE-2026-100749Medium
Joomla Extension - svenbluege.de - CSRF in backend cleanup actions in Event Gallery extension < 6.5.0 - Only orphaned file entries and shopping carts that are older than 30 days will be deleted.
- CVE-2026-100748Medium
Joomla Extension - svenbluege.de - CSRF in various cart actions in Event Gallery extension < 6.5.0
- CVE-2026-100747Medium
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.
Original NVD description (English source)
Joomla Extension - svenbluege.de - Reflected XSS and open redirect in Event Gallery extension < 6.5.0 - The “return” parameter is base64-decoded and written to the “Back” link without being validated.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS