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WP User Manager <= 2.10.2 - Authenticated (Subscriber+) Stored Cross-Site Scripting via 'display_name' User Meta

6.4MediumCNA
Exploited
No known exploitation
Fix
No fix listed
Who is exposed
Not reported
Published
Last modified
0.38% · 31st percentile
14/100 · provisional
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

Summary

The WP User Manager WordPress plugin has a stored cross-site scripting flaw that lets a remote attacker with a low-privilege subscriber account inject scripts into pages. The scripts run in the browser of any user who opens an affected page, and no user action is needed to trigger the payload.

Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.

Read the original description

The WP User Manager – Registration Form, Login Form, User Profile Builder & Member Directory 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 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The payload is stored via the WordPress core REST endpoint POST /wp-json/wp/v2/users/me, which bypasses the plugin's own wpum_sanitize_text sanitizer applied on its front-end account form, making the save-time sanitization ineffective as a mitigation.

cve.now Index

14Pcve.now Index 14 of 100 · methodology v3 · provisional
  • Exploitation0/40No signal
  • Exposure3/25Reachable over the network · Unknown: No advisory context yet
  • Reach?/20Unknown. No tracked technology or package matched
  • Severity6.4/10CVSS 6.4
  • No patch5/5No patch listed yet

What would change the score

  • Would score about 69 if added to CISA KEV
  • Would score about 64 if CISA's SSVC rates exploitation active
  • Would score about 33 if advisories confirm default setups are exposed

Timeline

  1. CVE published
  2. First seen by cve.now
  3. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: partial

  4. Record last updated

Affected versions

  • wpusermanager WP User Manager – Registration Form, Login Form, User Profile Builder & Member Directory

    through 2.10.2

Evidence 6

  1. Link
  2. Link
  3. Link
  4. Link
  5. Link
  6. Link

Corrections

None so far.

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Questions about CVE-2026-120550

Is CVE-2026-120550 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.Source: cve.now feed data

Which versions are affected by CVE-2026-120550?

WP User Manager – Registration Form, Login Form, User Profile Builder & Member Directory: through 2.10.2.Source: cve.now feed data