CVE-2026-120550 wpusermanager CVE debrief

Who should care

Defenders responsible for WordPress installations using the WP User Manager plugin, especially those with subscriber-level access or higher, should assess exposure and prioritize updating the plugin to a fixed version.

Why it matters

The WP User Manager plugin for WordPress has a Stored Cross-Site Scripting vulnerability, allowing authenticated attackers to inject arbitrary web scripts. Defenders should prioritize verifying exposure, updating the plugin, and monitoring for suspicious activity.

• Defenders must verify exposure of WordPress installations using the WP User Manager plugin
• Defenders should prioritize updating the plugin to a fixed version to prevent exploitation
• Defenders must monitor for suspicious activity on WordPress sites using the WP User Manager plugin

Technical summary

The WP User Manager plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'name (REST users endpoint) -> wp_users.display_name' parameter in all versions up to, and including, 2.10.2. This is due to insufficient input sanitization and output escaping. Authenticated attackers with subscriber-level access and above can inject arbitrary web scripts, which will execute when a user accesses an injected page.

Defensive priority

Defenders should prioritize verifying exposure of WordPress installations using the WP User Manager plugin, especially those with subscriber-level access or higher, and ensure the plugin is updated to a fixed version.

Recommended defensive actions

• Verify WordPress installations for exposure to CVE-2026-120550
• Update the WP User Manager plugin to a fixed version
• Monitor for suspicious activity on WordPress sites using the WP User Manager plugin
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The vulnerability is confirmed via the CVE Program record and the NVD vulnerability detail page. Additional details are provided by Wordfence security researchers. The WP User Manager plugin for WordPress has a Stored Cross-Site Scripting vulnerability via the 'name (REST users endpoint) -> wp_users.display_name' parameter in all versions up to, and including, 2.10.2. This is due to insufficient input sanitization and output escaping. Authenticated attackers with subscriber-level access and above can inject arbitrary web scripts, The

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.