CVE-2026-40755: Mikado-Themes TechLink PHP object injection

CVE-2026-40755 · Severity: high · CVSS 8.1 · Published 2026-06-17

The TechLink theme for WordPress is vulnerable to a security flaw that allows unauthorized users to inject malicious code. This could lead to a complete takeover of the website, theft of customer data, or a total service outage. Business owners using this theme should update to version 1.4 immediately to prevent potential mass-exploitation campaigns.

Vendors: Mikado-Themes.

Quick answers

Is CVE-2026-40755 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-40755 being exploited in the wild.
How severe is CVE-2026-40755?
High severity, with a CVSS score of 8.1, published 17 June 2026.
Which products and versions are affected?
Mikado-Themes TechLink <= 1.3.
Is there a fix for CVE-2026-40755?
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-2026-40755 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2026-40755?
Check whether you run Mikado-Themes TechLink 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 TechLink theme for WordPress (versions <= 1.3) due to improper deserialization of user-supplied data (CWE-502). 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, SQL injection, or arbitrary file deletion. The vulnerability is addressed in version 1.4.

Affected products

  • Mikado-Themes TechLink <= 1.3

Timeline

  • 2026-02-24: other: Reported by Denver Jackson
  • 2026-04-20: advisory: Patchstack advisory published
  • 2026-06-17: disclosed: NVD publication date

References

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