WP-UserOnline <= 2.87.6 - Authenticated (Admin+) Stored Cross-Site Scripting
Summary
| CVE | CVE-2022-2473 |
|---|---|
| State | PUBLISHED |
| Assigner | Wordfence |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2022-09-06 18:15:14 UTC |
| Updated | 2026-04-08 18:17:25 UTC |
| 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. |
Risk And Classification
Primary CVSS: v3.1 4.8 MEDIUM from [email protected]
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Problem Types: CWE-79 | CWE-79 CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Primary | 4.8 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N |
| 3.1 | [email protected] | Secondary | 5.5 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N |
| 3.1 | CNA | DECLARED | 5.5 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
HighUser Interaction
RequiredScope
ChangedConfidentiality
LowIntegrity
LowAvailability
NoneCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Application | Wp-useronline Project | Wp-useronline | All | All | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Gamerz | WP-UserOnline | affected 2.87.6 semver | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| Vulnerability Advisories - Wordfence | af854a3a-2127-422b-91ae-364da2661108 | www.wordfence.com | Third Party Advisory |
| WordPress Plugin WP-UserOnline 2.87.6 Stored Cross-Site Scripting (XSS) - Exploitalert | af854a3a-2127-422b-91ae-364da2661108 | www.exploitalert.com | Exploit, Third Party Advisory |
| WordPress Plugin WP-UserOnline 2.87.6 - Stored Cross-Site Scripting (XSS) - PHP webapps Exploit | af854a3a-2127-422b-91ae-364da2661108 | www.exploit-db.com | Third Party Advisory, VDB Entry |
| WordPress WP-UserOnline 2.87.6 Cross Site Scripting ≈ Packet Storm | af854a3a-2127-422b-91ae-364da2661108 | packetstormsecurity.com | Exploit, Third Party Advisory, VDB Entry |
| WordPress WP-UserOnline 2.87.6 Cross Site Scripting - Exploitalert | af854a3a-2127-422b-91ae-364da2661108 | www.exploitalert.com | Exploit, Third Party Advisory |
| 403 Forbidden | af854a3a-2127-422b-91ae-364da2661108 | plugins.trac.wordpress.org | Patch |
| WP-UserOnline <= 2.87.6 - Authenticated (Admin+) Stored Cross-Site Scripting | af854a3a-2127-422b-91ae-364da2661108 | www.wordfence.com | Third Party Advisory |
| Please update your browser | af854a3a-2127-422b-91ae-364da2661108 | youtu.be | Exploit |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: steffin stanly (en)
Additional Advisory Data
| Source | Time | Event |
|---|---|---|
| CNA | 2022-07-19T00:00:00.000Z | Disclosed |
There are currently no legacy QID mappings associated with this CVE.