CVE-2026-16542: Import and export users and customers Server-Side Request Forgery

CVE-2026-16542 · Severity: medium · CVSS 4.1 · Published 2026-09-20

A WordPress plugin used to import and export user data fails to validate URLs provided during CSV import operations. High-privileged administrators can exploit this to make the server send requests to internal systems, potentially accessing sensitive internal services or data that should not be exposed.

Technologies: Import and export users and customers.

Quick answers

Is CVE-2026-16542 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-16542 being exploited in the wild.
How severe is CVE-2026-16542?
Medium severity, with a CVSS score of 4.1, published 20 September 2026.
Which products and versions are affected?
Import and export users and customers before 2.4.5.
Is there a fix for CVE-2026-16542?
A patch was published on 2026-09-18: Fixed in version 2.4.5 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-16542 attacked?
It is attacked over the network.
Am I affected by CVE-2026-16542?
Check whether you run Import and export users and customers 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 plugin does not validate user-supplied URLs before fetching them server-side during CSV import, enabling Server-Side Request Forgery (SSRF) attacks. The vulnerability affects the bp_avatar parameter and requires administrator-level privileges to exploit. The vulnerability is patched in version 2.4.5.

Affected products

  • Import and export users and customers before 2.4.5

Timeline

  • 2026-09-18: disclosed
  • 2026-09-18: patched: Fixed in version 2.4.5

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.