What is CVE-2026-21625?

CVE-2026-21625 is a high-severity vulnerability in Stackideas Easydiscuss, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2026-01-16.

How severe is CVE-2026-21625?

High severity. CVSS v3 base score is 8.8 out of 10.

Arbitrary file upload in Stackideas Easydiscuss

CVE-2026-21625

User provided uploads to the Easy Discuss component for Joomla aren't properly validated. Uploads are purely checked by file extensions, no mime type checks are happening.

Vulnerability class: Unrestricted File Upload

EPSS: 0.003 (26.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Stackideas Easydiscuss
Stackideas.com Easydiscuss Extension For Joomla — versions 1.0.0-5.0.15

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

security@joomla.org (product, Third Party Advisory)

Frequently asked questions

What is CVE-2026-21625?: CVE-2026-21625 is a high-severity vulnerability in Stackideas Easydiscuss, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2026-01-16.
How severe is CVE-2026-21625?: High severity. CVSS v3 base score is 8.8 out of 10.