CVE-2022-2941

WP-UserOnline <= 2.88.0 - Authenticated (Admin+) Stored Cross-Site Scripting

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

gamerz · WP-UserOnline

CVSS v3.1 NVD

4.8 MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

CVSS v3.1 WORDFENCE

5.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N

EPSS

7.30% chance of exploitation in the next 30 days, 94th percentile

Published

2022-09-06

Updated

2026-04-08

Proof-of-concept exploits (1)

• https://packetstormsecurity.com/files/168479/wpuseronline2880-xss.txt

ExploitDB entries (1)

• https://www.exploit-db.com/exploits/51020

Security advisories

• https://www.wordfence.com/threat-intel/vulnerabilities/id/5c4fb14c-de6d-4247-8f83-050f135…
• https://www.wordfence.com/vulnerability-advisories/#CVE-2022-2941
• lesterchan/wp-useronline/commit/59c76b20e4e27489f93dee4ef1254d6204e08b3c
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2770235%…

References

• CVE Record
• NVD entry