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CVE-2021-24535

MEDIUM 6.1 CVSS 3.1
Published
August 16, 2021
Last modified
June 17, 2026
NVD status
Modified
Reported by
contact@wpscan.com
Weakness
CWE-79, CWE-352
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

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.

Affected products and versions

  • Unknown Light Messages — From 1.0 (including) to 1.0 (including)
  • light_messages_project light_messages — Up to and including 1.0

References

  • wpscan.com https://wpscan.com/vulnerability/351de889-9c0a-4637-bd06-0e1fe1d7e89f Exploit, Third Party Advisory
  • nvd.nist.gov Official NVD record