Is CVE-2026-84818 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-84818 being exploited in the wild.

How severe is CVE-2026-84818?

High severity, with a CVSS score of 7.1, published 8 September 2026.

Which products and versions are affected?

100plugins Open User Map <=1.4.50.

Is there a fix for CVE-2026-84818?

A patch was published on 2026-09-07: patched in version 1.4.51 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-84818 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2026-84818?

Check whether you run 100plugins Open User Map 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-2026-84818: WordPress Open User Map unauthenticated cross-site scripting

Q: Is there a fix for CVE-2026-84818?

A patch was published on 2026-09-07: patched in version 1.4.51 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

Q: How is CVE-2026-84818 attacked?

It is attacked over the network, in a web application.

Q: Am I affected by CVE-2026-84818?

Check whether you run 100plugins Open User Map 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-2026-84818 · Severity: high · CVSS 7.1 · Published 2026-09-08

Open User Map is a WordPress plugin that displays user information on interactive maps. The plugin contains an unauthenticated cross-site scripting (XSS) vulnerability that allows attackers to inject malicious scripts into affected websites. Successful exploitation could result in visitor data theft, account hijacking, or malware distribution to site users.

Technologies: 100plugins Open User Map. Vendors: 100plugins.

Quick answers

Is CVE-2026-84818 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-84818 being exploited in the wild.
How severe is CVE-2026-84818?: High severity, with a CVSS score of 7.1, published 8 September 2026.
Which products and versions are affected?: 100plugins Open User Map <=1.4.50.
Is there a fix for CVE-2026-84818?: A patch was published on 2026-09-07: patched in version 1.4.51 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-84818 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-84818?: Check whether you run 100plugins Open User Map 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 vulnerability is a stored or reflected cross-site scripting (XSS) flaw in the Open User Map WordPress plugin versions 1.4.50 and earlier. The plugin fails to properly sanitize or validate user input before displaying it to visitors. An unauthenticated attacker can craft a malicious URL or entry that, when accessed or processed by the plugin, injects arbitrary JavaScript code. While the attack is network-accessible without authentication, the Patchstack advisory notes that user interaction (such as clicking a malicious link) is required for successful exploitation. The vulnerability was patched in version 1.4.51.

Affected products

100plugins Open User Map <=1.4.50

Timeline

2026-09-07: disclosed
2026-09-07: patched: patched in version 1.4.51

References

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