Denial of Service Vulnerability in Wagtail Content Management System
CVE-2026-54260

4.3MEDIUM

Key Information:

Vendor

Wagtail

Status
Wagtail
Vendor
CVE Published:
1 July 2026

What is CVE-2026-54260?

In Wagtail versions prior to 7.0.8, 7.3.3, and 7.4.2, an authenticated admin user can exploit the system by triggering resource-intensive rendering processes through crafted filter specifications. This can lead to performance degradation of the content management system. While the vulnerability requires administrative access and cannot be exploited by ordinary site visitors, it underscores the importance of keeping the software updated to maintain optimal performance and security.

Affected Version(s)

wagtail < 7.0.8 < 7.0.8

wagtail >= 7.1.0, < 7.3.3 < 7.1.0, 7.3.3

wagtail >= 7.4.0, < 7.4.2 < 7.4.0, 7.4.2

References

https://github.com/wagtail/wagtail/security/advisories/GH...
x_refsource_CONFIRM

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.