CVE-2022-2941

Name: CVE-2022-2941
Creator: NVD / NIST
Published: 2022-09-06T18:15:15.2+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.8/10EPSS 5.09%

Last modified Jun 17, 2026

CVE-2022-2941 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. 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. EPSS estimates a 5.09% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

4.8/10

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

EPSS Probability

5.09%

91.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Wp-Useronline Project	Wp-Useronline	< 2.88.1

References

https://github.com/lesterchan/wp-useronline/commit/59c76b20e4e27489f93dee4ef1254d6204e08b3cPatch
https://packetstormsecurity.com/files/168479/wpuseronline2880-xss.txtExploit, Third Party Advisory, VDB Entry
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2770235%40wp-useronline&new=2770235%40wp-useronline&sfp_email=&sfph_mail=Patch
https://www.wordfence.com/threat-intel/vulnerabilities/id/5c4fb14c-de6d-4247-8f83-050f1350f6a2?source=cveThird Party Advisory
https://www.wordfence.com/vulnerability-advisories/#CVE-2022-2941Third Party Advisory
https://github.com/lesterchan/wp-useronline/commit/59c76b20e4e27489f93dee4ef1254d6204e08b3cPatch
https://packetstormsecurity.com/files/168479/wpuseronline2880-xss.txtExploit, Third Party Advisory, VDB Entry
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2770235%40wp-useronline&new=2770235%40wp-useronline&sfp_email=&sfph_mail=Patch
https://www.wordfence.com/threat-intel/vulnerabilities/id/5c4fb14c-de6d-4247-8f83-050f1350f6a2?source=cveThird Party Advisory
https://www.wordfence.com/vulnerability-advisories/#CVE-2022-2941Third Party Advisory

Timeline

Published: Sep 6, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-2941?

How severe is CVE-2022-2941?

CVE-2022-2941 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 5.09% probability of exploitation in the next 30 days.

How do I fix CVE-2022-2941?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-2941?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST