Quick answers
- Is CVE-2026-112862 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-112862 being exploited in the wild.
- How severe is CVE-2026-112862?
- Critical severity, with a CVSS score of 9.8, published 23 October 2026.
- Which products and versions are affected?
- Xnau Webdesign Participants Database through 2.7.8.5.
- Is there a fix for CVE-2026-112862?
- 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-2026-112862 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-112862?
- Check whether you run Xnau Webdesign Participants Database 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 plugin deserializes untrusted data without proper validation, enabling PHP object injection attacks. An unauthenticated, remote attacker can exploit this vulnerability to instantiate arbitrary PHP objects and trigger malicious code execution on the server, potentially leading to full system compromise.
Affected products
- xnau webdesign Participants Database through 2.7.8.5
Timeline
- 2026-10-23: disclosed
- 2026-10-21: advisory