PT-2021-16025 · WordPress · The Popular Brand Icons – Simple Icons
Apple502J
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Published
2021-08-02
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Updated
2021-08-10
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CVE-2021-24503
CVSS v3.1
5.4
Medium
| Vector | AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
Name of the Vulnerable Software and Affected Versions
The Popular Brand Icons – Simple Icons WordPress plugin versions prior to 2.7.8
Description
The issue allows users with a role as low as Contributor to set Cross-Site payload in some shortcode parameters, such as
color, size, or class, due to a lack of sanitization or validation. A post made by a contributor would still require admin approval to trigger the XSS in the frontend. However, higher privilege users, such as editors, could exploit this without needing approval, even when the blog disallows the unfiltered html capability.Recommendations
For versions prior to 2.7.8, update to version 2.7.8 or later to resolve the issue. As a temporary workaround, consider restricting the use of the vulnerable shortcode parameters, such as
color, size, or class, until a patch is available. Additionally, restrict access to the plugin's functionality for lower privilege users, such as contributors, to minimize the risk of exploitation.Exploit
Fix
XSS
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Weakness Enumeration
Related Identifiers
Affected Products
The Popular Brand Icons – Simple Icons