CVE-2021-47927CWE-79

WordPress Plugin WP Symposium Pro 2021.10 Stored XSS via wps_admin_forum_add_name

Medium · published May 10, 2026

CVSS v4.0
5.1
EPSS
0%
Percentile
8.5
In the wild
Unconfirmed
What it is

WordPress Plugin WP Symposium Pro 2021.10 contains a stored cross-site scripting vulnerability that allows authenticated attackers to inject malicious scripts by exploiting insufficient sanitization of the forum name parameter. Attackers can submit POST requests to the admin setup page with JavaScript payloads in the wps_admin_forum_add_name parameter, which are stored and executed when the forum is accessed.

The record
Technical detail
CVSS v4.0
5.1 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
EPSS
0.00193 · 8.5th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-05-10T12:43Z
EPSS history
Timeline
  • 10 MAY 12:43Z
    WordPress Plugin WP Symposium Pro 2021.10 Stored XSS via wps_admin_forum_add_name
    cvelistv5