XSS in Document Gallery

CVE-2026-74920

The Document Gallery WordPress plugin through 5.1.1 does not properly sanitise and escape user input before reflecting it inside an HTML attribute in the response of an unauthenticated AJAX action, leading to a Reflected Cross-Site Scripting vulnerability which can be exploited against any visitor, including a logged-in administrator.

Vulnerability class: XSS (Cross-Site Scripting)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L.

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

  • Document Gallery

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-74920?
CVE-2026-74920 is a high-severity vulnerability in Document Gallery, classified under Cross-site Scripting. CVSS score: 7.1/10. Published 2026-10-15.
How severe is CVE-2026-74920?
High severity. CVSS v3 base score is 7.1 out of 10.