CVE-2021-24535

Light Messages <= 1.0 - CSRF to Stored XSS

Published Aug 16, 2021 CVSS 3.1 · 6.1 Medium EPSS < 1% KEV · Not listed
Description
The Light Messages WordPress plugin through 1.0 is lacking CSRF check when updating it's settings, and is not sanitising its Message Content in them (even with the unfiltered_html disallowed). As a result, an attacker could make a logged in admin update the settings to arbitrary values, and set a Cross-Site Scripting payload in the Message Content. Depending on the options set, the XSS payload can be triggered either in the backend only (in the plugin's settings), or both frontend and backend.

Analysis

No analysis available yet

Remediation

No remediation available yet

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
EUVD EUVD EUVD-2021-11447 The Light Messages WordPress plugin through 1.0 is lacking CSRF check when updating it's settings, and is not sanitising its Message Content in them (even with the unfiltered_html disallowed). As a result, an attacker could make a logged in admin update the settings to arbitrary values, and set a Cross-Site Scripting payload in the Message Content. Depending on the options set, the XSS payload can be triggered either in the backend only (in the plugin's settings), or both frontend and backend.
History

No history.

Weaknesses
  • CWE-352

    Cross-Site Request Forgery (CSRF)

  • CWE-79

    Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Sources

Status
PUBLISHED
Assigner
WPScan
Published
Updated
Aug 3, 2024, 7:35 PM
Reserved
Jan 14, 2021, 12:00 AM
Status
Modified
Published
Aug 16, 2021, 11:15 AM
Modified
Jun 17, 2026, 3:40 AM