Read the docs
TI-2021-06790 Aliases CVE-2021-24503GHSA-25qm-8qm2-g8hh

Popular Brand SVG Icons - Simple Icons < 2.7.8 - Contributor+ Stored XSS

Priority LOW 25CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

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.

Why it matters now

EPSS 0.00624 50th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Popular Brand Icons – Simple Icons (Unknown): 2.7.8

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
UnknownPopular Brand Icons – Simple Icons2.7.8 to before 2.7.82.7.8Patch availableCNA
  • Popular Brand Icons – Simple Icons VendorUnknown Affected 2.7.8 to before 2.7.8 Fixed in 2.7.8 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:thememason:popular_brand_icons_-_simple_icons:*:*:*:*:*:wordpress:*:*before 2.7.8VulnerableThememason
  • cpe:2.3:a:thememason:popular_brand_icons_-_simple_icons:*:*:*:*:*:wordpress:*:* Versions before 2.7.8 Vulnerable ·Thememason

Remediation

  • Fix · CNA Popular Brand Icons – Simple Icons (Unknown) Fixed in 2.7.8

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-24503
  2. 2026-10-03 Alias added: GHSA-25qm-8qm2-g8hh
  3. 2026-11-04 EPSS moved to the 50th–90th percentile

References

Exploit 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences