What is CVE-2026-54263?

CVE-2026-54263 is a high-severity vulnerability in Wagtail, classified under Cross-site Scripting. CVSS score: 7.3/10. Published 2026-07-01.

How severe is CVE-2026-54263?

High severity. CVSS v3 base score is 7.3 out of 10.

XSS in Wagtail

CVE-2026-54263

Wagtail is an open source content management system built on Django. In versions prior to 7.0.8, 7.3.3 and 7.4.2, reflected cross-site scripting (XSS) vulnerability exists on the dynamic image URL generator view within the Wagtail admin in…

Vulnerability class: XSS (Cross-Site Scripting)

CVSS v3 metric

CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N.

Affected products

Wagtail — versions < 7.0.8, >= 7.1.0, < 7.3.3, >= 7.4.0, < 7.4.2

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-54263?: CVE-2026-54263 is a high-severity vulnerability in Wagtail, classified under Cross-site Scripting. CVSS score: 7.3/10. Published 2026-07-01.
How severe is CVE-2026-54263?: High severity. CVSS v3 base score is 7.3 out of 10.