CVE-2026-116399: InstaWP Connect cross-site request forgery

CVE-2026-116399 · Severity: high · CVSS 8.8 · Published 2026-10-29

InstaWP Connect is a WordPress plugin that enables website management and setup tasks. A cross-site request forgery vulnerability allows attackers to trick authenticated administrators into performing unintended actions such as changing settings or modifying configurations. Exploitation requires social engineering to lure a logged-in user to a malicious site, but once successful, an attacker can compromise the website's administrative functions.

Technologies: InstaWP Connect. Vendors: InstaWP.

Quick answers

Is CVE-2026-116399 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-116399 being exploited in the wild.
How severe is CVE-2026-116399?
High severity, with a CVSS score of 8.8, published 29 October 2026.
Which products and versions are affected?
InstaWP Connect through 0.1.4.2.
Is there a fix for CVE-2026-116399?
Yes: fixed in 0.1.4.3. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-116399 attacked?
It is attacked over the network.
Am I affected by CVE-2026-116399?
Check whether you run InstaWP Connect 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

  • Fixed in: 0.1.4.3

Technical details

A cross-site request forgery (CSRF) vulnerability in InstaWP Connect through version 0.1.4.2 fails to validate anti-CSRF tokens on administrative actions, allowing an unauthenticated attacker to craft malicious requests that execute with the privileges of an authenticated admin user. The attack requires user interaction (a victim must click a link or visit a crafted page while logged in). Successful exploitation enables arbitrary administrative actions on affected WordPress installations.

Affected products

  • InstaWP InstaWP Connect through 0.1.4.2

Timeline

  • 2026-10-29: disclosed
  • 2026-10-29: patched: Version 0.1.4.3 released

References

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