Quick answers
- Is CVE-2026-42719 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-42719 being exploited in the wild.
- How severe is CVE-2026-42719?
- Critical severity, with a CVSS score of 9.8, published 10 October 2026.
- Which products and versions are affected?
- Wordpress Dynamic User Directory <=2.4.
- Is there a fix for CVE-2026-42719?
- No fixed version is recorded yet. Patchstack has issued a mitigation rule to block attacks until an official patch is available. As an immediate action, disable the plugin or restrict subscriber-level user access until a patched version is released. 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-2026-42719 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-42719?
- Check whether you run Wordpress Dynamic User Directory 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.
How to fix
Patchstack has issued a mitigation rule to block attacks until an official patch is available. As an immediate action, disable the plugin or restrict subscriber-level user access until a patched version is released.
Technical details
PHP object injection vulnerability in the Dynamic User Directory plugin through version 2.4 allows authenticated subscriber-level users to manipulate how the site processes serialized data, leading to remote code execution. The vulnerability is triggered through user-controlled input that is deserialized without proper validation, exploitable via the network with subscriber authentication.
Affected products
- WordPress Dynamic User Directory <=2.4
Timeline
- 2026-10-10: disclosed
- 2026-09-07: other: Vulnerability reported to vendor