Quick answers
- Is CVE-2026-39578 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-39578 being exploited in the wild.
- How severe is CVE-2026-39578?
- Medium severity, with a CVSS score of 5.5, published 17 June 2026.
- Which products and versions are affected?
- Elated-Themes Valiance <= 1.2.
- Is there a fix for CVE-2026-39578?
- 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-2026-39578 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-39578?
- Check whether you run Elated-Themes Valiance 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 PHP Object Injection vulnerability exists in the Valiance theme for WordPress (versions <= 1.2) due to improper deserialization of untrusted data. An unauthenticated remote attacker can exploit this by sending specially crafted input to the application. If a suitable Property-Oriented Programming (POP) chain is present on the server, this can lead to remote code execution, arbitrary file deletion, or sensitive data exposure. The issue is resolved in version 1.3.
Affected products
- Elated-Themes Valiance <= 1.2
Timeline
- 2026-02-12: other: Reported by Denver Jackson
- 2026-04-08: advisory: Patchstack advisory published
- 2026-06-17: disclosed: CVE published to NVD