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

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

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.