Wagtail: Denial of service via unbounded filter specs in the image preview
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Low
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-400.
Summary
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, an authenticated admin user can trigger expensive rendition processing with purposefully crafted filter specs resulting in potentially service degradation. The vulnerability is not exploitable by an ordinary site visitor without access to the Wagtail admin. This issue has been fixed in versions 7.0.8, 7.3.3, and 7.4.2.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| wagtail | wagtail | before 7.0.8; 7.1.0 to before 7.3.3; 7.4.0 to before 7.4.2 | 7.0.8, 7.3.3, 7.4.2 | Patch available | CNA |
| — | wagtail (PyPI) | before 7.0.8 | 7.0.8 | Patch available | GHSA-f2p5-j6fg-5cxf |
| — | wagtail (PyPI) | 7.1 to before 7.3.3 | 7.3.3 | Patch available | GHSA-f2p5-j6fg-5cxf |
| — | wagtail (PyPI) | 7.4 to before 7.4.2 | 7.4.2 | Patch available | GHSA-f2p5-j6fg-5cxf |
- wagtail Vendorwagtail Affected before 7.0.8; 7.1.0 to before 7.3.3; 7.4.0 to before 7.4.2 Fixed in 7.0.8, 7.3.3, 7.4.2 Patch available CNA
- wagtail (PyPI) Vendor— Affected before 7.0.8 Fixed in 7.0.8 Patch available GHSA-f2p5-j6fg-5cxf
- wagtail (PyPI) Vendor— Affected 7.1 to before 7.3.3 Fixed in 7.3.3 Patch available GHSA-f2p5-j6fg-5cxf
- wagtail (PyPI) Vendor— Affected 7.4 to before 7.4.2 Fixed in 7.4.2 Patch available GHSA-f2p5-j6fg-5cxf
Remediation
- Fix · CNA wagtail (wagtail) Fixed in 7.0.8, 7.3.3, 7.4.2
- Fix · GHSA-f2p5-j6fg-5cxf wagtail (PyPI) Fixed in 7.0.8 Advisory →
- Fix · GHSA-f2p5-j6fg-5cxf wagtail (PyPI) Fixed in 7.3.3 Advisory →
- Fix · GHSA-f2p5-j6fg-5cxf wagtail (PyPI) Fixed in 7.4.2 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-54260
- 2026-10-03 Alias added: GHSA-f2p5-j6fg-5cxf
References
More Wagtail vulnerabilities
- TI-2026-39163 Wagtail: Reflected XSS in dynamic image URL generator view CVSS 3.1HIGH 7.3
- TI-2020-08875 Possible XSS attack in Wagtail CVSS 3.1MEDIUM 6.8
- TI-2023-13342 Wagtail vulnerable to stored Cross-site Scripting attack via ModelAdmin views CVSS 3.1MEDIUM 6.4
- TI-2026-32180 Wagtail: Improper restriction handling on Documents and Images API CVSS 3.1MEDIUM 5.3
- TI-2026-22558 Wagtail: Improper escaping of HTML (Cross-site Scripting) in simple_translation admin interface CVSS 3.1MEDIUM 6.1
- TI-2026-22557 Wagtail: Improper escaping of HTML (Cross-site Scripting) on TableBlock class attributes CVSS 3.1MEDIUM 6.1
Sources
- CVE-2026-54260 · CVE Program
- CVE-2026-54260 · NVD
- FIRST EPSS
- GHSA-f2p5-j6fg-5cxf · GitHub Advisory Database · CC BY 4.0
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