CVE-2022-2473

Name: CVE-2022-2473
Creator: NVD / NIST
Published: 2022-09-06T18:15:14.013+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.8/10EPSS 0.95%

Last modified Jun 17, 2026

CVE-2022-2473 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. The WP-UserOnline plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘templates[browsingpage][text]' parameter in versions up to, and including, 2.87.6 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers with administrative capabilities and above to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. EPSS estimates a 0.95% chance of exploitation in the next 30 days.

Description

The WP-UserOnline plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘templates[browsingpage][text]' parameter in versions up to, and including, 2.87.6 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers with administrative capabilities and above to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The only affects multi-site installations and installations where unfiltered_html is 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

0.95%

56.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Wp-Useronline Project	Wp-Useronline	<= 2.87.6

References

https://packetstormsecurity.com/files/167864/wpuseronline2876-xss.txtExploit, Third Party Advisory, VDB Entry
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2758412%40wp-useronline&new=2758412%40wp-useronline&sfp_email=&sfph_mail=Patch
https://www.exploit-db.com/exploits/50988Third Party Advisory, VDB Entry
https://www.exploitalert.com/view-details.html?id=38893Exploit, Third Party Advisory
https://www.exploitalert.com/view-details.html?id=38912Exploit, Third Party Advisory
https://www.wordfence.com/threat-intel/vulnerabilities/id/6a44a55e-a96a-4698-9948-6ef33138a834?source=cveThird Party Advisory
https://www.wordfence.com/vulnerability-advisories/#CVE-2022-2473Third Party Advisory
https://youtu.be/Q3zInrUnAV0Exploit
https://packetstormsecurity.com/files/167864/wpuseronline2876-xss.txtExploit, Third Party Advisory, VDB Entry
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2758412%40wp-useronline&new=2758412%40wp-useronline&sfp_email=&sfph_mail=Patch
https://www.exploit-db.com/exploits/50988Third Party Advisory, VDB Entry
https://www.exploitalert.com/view-details.html?id=38893Exploit, Third Party Advisory
https://www.exploitalert.com/view-details.html?id=38912Exploit, Third Party Advisory
https://www.wordfence.com/threat-intel/vulnerabilities/id/6a44a55e-a96a-4698-9948-6ef33138a834?source=cveThird Party Advisory
https://www.wordfence.com/vulnerability-advisories/#CVE-2022-2473Third Party Advisory
https://youtu.be/Q3zInrUnAV0Exploit

Timeline

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

Frequently Asked Questions

What is CVE-2022-2473?

How severe is CVE-2022-2473?

CVE-2022-2473 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 0.95% probability of exploitation in the next 30 days.

How do I fix CVE-2022-2473?

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-2022-2473?

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

Scan your code now

Source: NVD / NIST