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CVE-2022-2941

MEDIUM 4.8 CVSS 3.1
Published
September 6, 2022
Last modified
June 17, 2026
NVD status
Modified
Reported by
security@wordfence.com
Weakness
CWE-79
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Description

The WP-UserOnline plugin for WordPress has multiple Stored Cross-Site Scripting vulnerabilities in versions up to, and including 2.88.0. This is due to the fact that all fields in the "Naming Conventions" section do not properly sanitize user input, nor escape it on output. This makes it possible for authenticated attackers, with administrative privileges, to inject JavaScript code into the setting that will execute whenever a user accesses the injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

Affected WordPress components

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • gamerz WP-UserOnline — Up to and including 2.88.0
  • wp-useronline_project wp-useronline — Before 2.88.1

References

  • github.com https://github.com/lesterchan/wp-useronline/commit/59c76b20e4e27489f93dee4ef1254d6204e08b3c Patch
  • packetstormsecurity.com https://packetstormsecurity.com/files/168479/wpuseronline2880-xss.txt Exploit, Third Party Advisory, VDB Entry
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2770235%40wp-useronline&new=2770235%40wp-useronline&sfp_email=&sfph_mail= Patch
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/5c4fb14c-de6d-4247-8f83-050f1350f6a2?source=cve Third Party Advisory
  • www.wordfence.com https://www.wordfence.com/vulnerability-advisories/#CVE-2022-2941 Third Party Advisory
  • nvd.nist.gov Official NVD record