WordPress Plugin Vulnerabilities

Link Library < 7.4.1 - Admin+ Stored XSS

Description

The plugin does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup).

Proof of Concept

1. Install the plugin and go to: wp-admin/admin.php?page=link-library-general-options&currenttab=ll-general

2. Insert the payload in the 'Links Date Format', such as: '"><script>alert(/xss/);</script><'".

3. Refresh the page to get the XSS popup.

Affects Plugins

Plugin icon
link-library
Fixed in 7.4.1

References

CVE
CVE-2022-4199

Classification

Type
XSS
OWASP top 10
A7: Cross-Site Scripting (XSS)
CWE
CWE-79
CVSS
3.4 (low)

Miscellaneous

Original Researcher
iohex
Submitter
iohex
Submitter twitter
iohehe
Verified
Yes
WPVDB ID
c4688c0b-0538-4151-995c-d437d7e4829d

Timeline

Publicly Published
2022-12-23 (about 1 years ago)
Added
2022-12-26 (about 1 years ago)
Last Updated
2022-12-26 (about 1 years ago)

Other

Published
Title
Published
2023-11-13
Title
Ultimate Dashboard < 3.7.8 - Authenticated (Administrator+) Stored Cross-Site Scripting via plugin settings
Published
2023-10-26
Title
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Published
2023-01-06
Title
News & Blog Designer Pack < 3.3 - Contributor+ Stored XSS via Shortcode
Published
2024-04-12
Title
Jobs for WordPress < 2.7.6 - Reflected Cross-Site Scripting
Published
2024-03-25
Title
Responsive Tabs < 4.0.7 - Authenticated (Contributor+) Stored Cross-Site Scripting