Is CVE-2026-84816 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-84816 being exploited in the wild.

How severe is CVE-2026-84816?

High severity, with a CVSS score of 7.1, published 10 September 2026.

Which products and versions are affected?

PluginUs.Net WPCS 1.3.2 and earlier.

Is there a fix for CVE-2026-84816?

A patch was published on 2026-09-09: Fixed in version 1.3.3 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-84816 attacked?

It is attacked over the network.

Am I affected by CVE-2026-84816?

Check whether you run PluginUs.Net WPCS 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.

CVE-2026-84816: WordPress WPCS plugin unauthenticated XSS

CVE-2026-84816 · Severity: high · CVSS 7.1 · Published 2026-09-10

The WordPress Currency Switcher (WPCS) plugin, used to enable multiple currency display on WordPress stores and websites, contains an unauthenticated cross-site scripting (XSS) vulnerability. An attacker can inject malicious scripts into affected websites through this flaw, potentially stealing visitor data, hijacking user accounts, or defacing pages without requiring any authentication or special privileges.

Vendors: PluginUs.Net.

Quick answers

Is CVE-2026-84816 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-84816 being exploited in the wild.
How severe is CVE-2026-84816?: High severity, with a CVSS score of 7.1, published 10 September 2026.
Which products and versions are affected?: PluginUs.Net WPCS 1.3.2 and earlier.
Is there a fix for CVE-2026-84816?: A patch was published on 2026-09-09: Fixed in version 1.3.3 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-84816 attacked?: It is attacked over the network.
Am I affected by CVE-2026-84816?: Check whether you run PluginUs.Net WPCS 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

This is a stored or reflected cross-site scripting (XSS) vulnerability in the WPCS plugin versions 1.3.2 and earlier. The vulnerability allows unauthenticated attackers to inject arbitrary JavaScript code that executes in visitors' browsers. Exploitation requires user interaction such as clicking a malicious link or visiting a crafted page. The vulnerability is rooted in insufficient input validation and output encoding. An attacker can leverage this to steal session cookies, hijack visitor accounts, capture form data, or perform actions on behalf of authenticated users. The vulnerability has been patched in version 1.3.3 and later.

Affected products

PluginUs.Net WPCS 1.3.2 and earlier

Timeline

2026-09-10: disclosed
2026-09-09: patched: Fixed in version 1.3.3
2026-08-24: reported

References

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