CVE-2026-120550

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 63/100
Published: 2026-11-06 Modified: 2026-11-06 First seen: 2026-11-06 Status: active

Attack Surface

Network Low Complexity No Interaction Scope Change

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: None
S: Changed
C: Low
I: Low
A: None

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.

Bug Bounty Relevance

63 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

6.4 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

EPSS — Exploitation Probability

0.34%
Raw Score 0.003350
Percentile 27.3%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00335
2026-11-12
0.00335
2026-11-10
0.00335
2026-11-09
0.00335
2026-11-08
0.00335
2026-11-07
0.00335
2026-11-06
0.00375

Intelligence Sources

mitre ref →
nvd ref →