Quick answers
- Is CVE-2026-59555 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-59555 being exploited in the wild.
- How severe is CVE-2026-59555?
- Critical severity, with a CVSS score of 10, published 23 July 2026.
- Which products and versions are affected?
- Xnau Webdesign Participants Database <= 2.7.8.3.
- Is there a fix for CVE-2026-59555?
- A patch was published on 2026-07-23: Fixed in version 2.7.8.4 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-59555 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-59555?
- 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 Participants Database plugin for WordPress (versions up to and including 2.7.8.3) is vulnerable to unauthenticated arbitrary file deletion. This issue stems from improper limitation of a pathname to a restricted directory (CWE-22), commonly known as path traversal. A remote, unauthenticated attacker can exploit this by sending a specially crafted request to delete sensitive files on the server, such as wp-config.php or .htaccess. Successful exploitation can lead to a complete denial of service or allow the attacker to reset the site and gain administrative control. The vulnerability is patched in version 2.7.8.4.
Affected products
- Roland Barker (xnau webdesign) Participants Database <= 2.7.8.3
Timeline
- 2026-04-24: other: Reported by researcher hhhai
- 2026-07-22: advisory: Patchstack advisory published
- 2026-07-23: disclosed: CVE published to NVD
- 2026-07-23: patched: Fixed in version 2.7.8.4