Quick answers
- Is CVE-2026-39629 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-39629 being exploited in the wild.
- How severe is CVE-2026-39629?
- Medium severity, with a CVSS score of 5.3, published 8 April 2026.
- Which products and versions are affected?
- KuteThemes Uminex <= 1.0.9.
- Is there a fix for CVE-2026-39629?
- 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-2026-39629 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-39629?
- Check whether you run KuteThemes Uminex 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
A vulnerability classified as Improper Neutralization of Script-Related HTML Tags (CWE-80) exists in the Kutethemes Uminex theme for WordPress. The flaw allows for basic Cross-Site Scripting (XSS) and arbitrary shortcode execution due to insufficient input validation and output sanitization. An unauthenticated remote attacker can exploit this to inject malicious scripts or content into pages and posts. The issue affects all versions up to and including 1.0.9. As of the advisory date, no official patch has been released.
Affected products
- Kutethemes Uminex <= 1.0.9
Timeline
- 2026-01-13: other: Vulnerability reported by researcher João Pedro S Alcântara
- 2026-02-12: disclosed: Initial disclosure by Patchstack
- 2026-04-08: advisory: CVE published to NVD