XSS in Easy Social Icons

CVE-2026-105259

The Easy Social Icons WordPress plugin before 4.0.3 does not sanitise SVG files, which it adds to the list of file types that may be uploaded site-wide, allowing users with the Author role and above to upload a malicious SVG containing XSS payloads. Where another installed Easy Social Icons WordPress plugin before 4.0.3 exposes an upload route to unauthenticated visitors, the same issue can be triggered without an account.

Vulnerability class: XSS (Cross-Site Scripting)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (14.6th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 15th percentile — 14.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

The 30-day trend appears once there are two daily scores.

Affected products

  • Easy Social Icons

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-105259?
CVE-2026-105259 is a medium-severity vulnerability in Easy Social Icons, classified under Cross-site Scripting. CVSS score: 6.8/10. Published 2026-11-05.
How severe is CVE-2026-105259?
Medium severity. CVSS v3 base score is 6.8 out of 10.