Groups <= 3.10.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'groups_group_info' Shortcode

2026-02-18 00:00

Muhammad Yudha - DJ

Strategic Overview

Status

Patched in 3.11.0

Affected PluginGroups

Affected Version<= 3.10.0

CVSS6.4Medium

CVECVE-2026-0549

View all Groups vulnerabilities

Vulnerability Overview

The Groups plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'groups_group_info' shortcode in all versions up to, and including, 3.10.0 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Technical Analysis

REMEDIATION: Update to version 3.11.0, or a newer patched version --- IDENTIFIER: CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

External References

https://www.cve.org/CVERecord?id=CVE-2026-0549 https://www.wordfence.com/threat-intel/vulnerabilities/id/75000e67-7914-43af-be1d-82990ada5129

CVSS Vector

6.4

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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