Quick answers
- Is CVE-2026-100747 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-100747 being exploited in the wild.
- How severe is CVE-2026-100747?
- Informational severity, published 27 September 2026.
- Which products and versions are affected?
- Svenbluege.De Event Gallery < 6.5.0.
- Is there a fix for CVE-2026-100747?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-100747 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-100747?
- Check whether you run Svenbluege.De Event Gallery at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The vulnerability is a Cross-Site Request Forgery (CSRF) flaw in the image upload handler for the Event Gallery extension. An unauthenticated attacker can craft a malicious web page that, when visited by an authenticated administrator, triggers unwanted file uploads or overwrites existing image files without valid CSRF token validation. This requires the victim to be logged in and visit the attacker's site, but can result in unauthorized file operations and potential remote code execution if executable files are uploaded.
Affected products
- svenbluege.de Event Gallery < 6.5.0
Timeline
- 2026-09-27: disclosed