CVE-2026-39557: Elated-Themes NeoBeat PHP object injection

CVE-2026-39557 · Severity: high · CVSS 8.1 · Published 2026-06-17

NeoBeat, a WordPress theme used for building websites, contains a security flaw that allows unauthorized individuals to inject malicious code. If exploited, an attacker could potentially take full control of the website, steal sensitive customer data, or cause the site to crash. This vulnerability is particularly dangerous because it does not require a password to exploit and is often targeted in automated mass-attacks.

Vendors: Elated-Themes.

Quick answers

Is CVE-2026-39557 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-39557 being exploited in the wild.
How severe is CVE-2026-39557?
High severity, with a CVSS score of 8.1, published 17 June 2026.
Which products and versions are affected?
Elated-Themes NeoBeat <= 1.7.
Is there a fix for CVE-2026-39557?
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-2026-39557 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2026-39557?
Check whether you run Elated-Themes NeoBeat 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 NeoBeat theme for WordPress is vulnerable to PHP Object Injection in versions up to and including 1.7. This issue arises from the deserialization of untrusted data (CWE-502), allowing an unauthenticated attacker to inject PHP objects. If a suitable Property-Oriented Programming (POP) chain is present in the environment, this can lead to remote code execution, SQL injection, or arbitrary file deletion. The attack can be performed over the network without any user interaction or prior authentication. Users are advised to update to version 1.8 or later to remediate the vulnerability.

Affected products

  • Elated-Themes NeoBeat <= 1.7

Timeline

  • 2026-02-12: other: Reported by Denver Jackson
  • 2026-04-08: advisory: Patchstack advisory published
  • 2026-06-17: disclosed: NVD publication date

References

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