Vulnerability Details CVE-2021-24503
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 37.9%
CVSS Severity
CVSS v3 Score 5.4
CVSS v2 Score 3.5
References
Products affected by CVE-2021-24503
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cpe:2.3:a:thememason:popular_brand_icons_-_simple_icons:-
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cpe:2.3:a:thememason:popular_brand_icons_-_simple_icons:1.1.0
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cpe:2.3:a:thememason:popular_brand_icons_-_simple_icons:2.0
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cpe:2.3:a:thememason:popular_brand_icons_-_simple_icons:2.0.1
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cpe:2.3:a:thememason:popular_brand_icons_-_simple_icons:2.0.2
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cpe:2.3:a:thememason:popular_brand_icons_-_simple_icons:2.0.3
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cpe:2.3:a:thememason:popular_brand_icons_-_simple_icons:2.1
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cpe:2.3:a:thememason:popular_brand_icons_-_simple_icons:2.2.0
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cpe:2.3:a:thememason:popular_brand_icons_-_simple_icons:2.2.1
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cpe:2.3:a:thememason:popular_brand_icons_-_simple_icons:2.2.2
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cpe:2.3:a:thememason:popular_brand_icons_-_simple_icons:2.3.0
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cpe:2.3:a:thememason:popular_brand_icons_-_simple_icons:2.3.1
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cpe:2.3:a:thememason:popular_brand_icons_-_simple_icons:2.3.2
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cpe:2.3:a:thememason:popular_brand_icons_-_simple_icons:2.3.3
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cpe:2.3:a:thememason:popular_brand_icons_-_simple_icons:2.4.0
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cpe:2.3:a:thememason:popular_brand_icons_-_simple_icons:2.5.0
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cpe:2.3:a:thememason:popular_brand_icons_-_simple_icons:2.6.0
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cpe:2.3:a:thememason:popular_brand_icons_-_simple_icons:2.7.0
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cpe:2.3:a:thememason:popular_brand_icons_-_simple_icons:2.7.1
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cpe:2.3:a:thememason:popular_brand_icons_-_simple_icons:2.7.2
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cpe:2.3:a:thememason:popular_brand_icons_-_simple_icons:2.7.3
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cpe:2.3:a:thememason:popular_brand_icons_-_simple_icons:2.7.4
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cpe:2.3:a:thememason:popular_brand_icons_-_simple_icons:2.7.5
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cpe:2.3:a:thememason:popular_brand_icons_-_simple_icons:2.7.6
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cpe:2.3:a:thememason:popular_brand_icons_-_simple_icons:2.7.7