The Popular Brand Icons – Simple Icons WordPress plugin before 2.7.8 does not sanitise or validate some of its shortcode parameters, such as "color", "size" or "class", allowing users with a role as low as Contributor to set Cross-Site payload in them. A post made by a contributor would still have to be approved by an admin to have the XSS triggered in the frontend, however, higher privilege users, such as editor could exploit this without the need of approval, and even when the blog disallows the unfiltered_html capability.
CVE-2021-24503 is a medium severity with CVSS 5.4 Cross-Site Scripting issue affecting the Plugin Popular Brand Icons – Simple Icons. It affects Versions before 2.7.8 and is fixed in 2.7.8.
CVE-2021-24503 is tracked for the Plugin Popular Brand Icons – Simple Icons as medium severity with CVSS 5.4. The affected range is Versions before 2.7.8. Update Popular Brand Icons – Simple Icons to 2.7.8 or newer where that version is compatible with the site.
| Software Type | Plugin |
|---|---|
| Software Slug |
simple-icons
View on wordpress.org
|
| CVE | CVE-2021-24503 |
| Patched Versions |
2.7.8
|
| Affected Versions |
Versions before 2.7.8
|
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