XSS in Accellion Kiteworks

CVE-2026-24754

Kiteworks is a private data network (PDN). Prior to version 9.3.0, a stored XSS vulnerability in Kiteworks Secure Data Forms could allow an authenticated attacker to execute arbitrary JavaScript code in other users' sessions. Upgrade Kiteworks to version 9.3.0 or later to receive a patch.

Vulnerability class: XSS (Cross-Site Scripting)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.001 (2.7th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 3rd percentile — 2.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-24754: held from 0.001 to 0.001.

EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: 0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-24754?
CVE-2026-24754 is a medium-severity vulnerability in Accellion Kiteworks, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-06-01.
How severe is CVE-2026-24754?
Medium severity. CVSS v3 base score is 5.4 out of 10.