Vulnerability · Published Sep 6, 2022 · Assigned by Wordfence
CVE-2022-2473WP-UserOnline <= 2.87.6 - Authenticated (Admin+) Stored Cross-Site Scripting
Medium 5.5
In plain English
A medium-severity cross-site scripting in WP-UserOnline from gamerz. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.4% (higher than 72% of all known vulnerabilities).
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| gamerz | WP-UserOnline | 0 – through 2.87.6 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/6a44a55e-a96a-4698-9948-6ef33138a834?source=cve
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2758412%40wp-useronline&new=2758412%40wp-useronline&sfp_email=&sfph_mail=
- https://youtu.be/Q3zInrUnAV0
- https://www.wordfence.com/vulnerability-advisories/#CVE-2022-2473
- https://www.exploit-db.com/exploits/50988
- https://packetstormsecurity.com/files/167864/wpuseronline2876-xss.txt
- https://www.exploitalert.com/view-details.html?id=38893
- https://www.exploitalert.com/view-details.html?id=38912