CVE-2026-100747 Joomla Extension - svenbluege.de - CSRF in image upload in Event Gallery extension < 6.5.0
Attackers can force users to upload or overwrite event images via CSRF, requiring an upgrade to the Event Gallery extension.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-100747?
CVE-2026-100747 is a medium-severity vulnerability in svenbluege.de Event Gallery for Joomla, published on 27 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official 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.
Weakness: CWE-352
Which versions are affected by CVE-2026-100747?
It affects 1 product.
Products include Svenbluege Event Gallery.
How do I fix CVE-2026-100747?
No fix has been published for CVE-2026-100747 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-100747 being exploited?
There is no known exploitation of CVE-2026-100747 in the wild and no public exploit code.
Other vulnerabilities in svenbluege.de Event Gallery for Joomla
- CVE-2026-97164 Joomla Extension - svenbluege.de - Path Traversal in Clear Cache task in Event Gallery extension < 6.5.0
- CVE-2026-100748 Joomla Extension - svenbluege.de - CSRF in various cart actions in Event Gallery extension < 6.5.0
- CVE-2026-102777 Server-side request forgery in Event Gallery for Joomla
- CVE-2026-102778 Cross-site scripting in Event Gallery for Joomla
- CVE-2026-97165 Joomla Extension - svenbluege.de - Reflected XSS and open redirect in Event Gallery extension < 6.5.0
Sources
Also known as GHSA-cgxg-f4wg-xm8f.