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TI-2026-22557 Aliases CVE-2026-28222GHSA-p5cm-246w-84jm

Wagtail: Improper escaping of HTML (Cross-site Scripting) on TableBlock class attributes

Priority LOW 30CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-79.

Summary

Wagtail is an open source content management system built on Django. Prior to versions 6.3.8, 7.0.6, 7.2.3, and 7.3.1, a stored cross-site scripting (XSS) vulnerability exists on rendering TableBlock blocks within a StreamField. A user with access to create or edit pages containing TableBlock StreamField blocks is able to set specially-crafted class attributes on the block which run arbitrary JavaScript code when the page is viewed. When viewed by a user with higher privileges, this could lead to performing actions with that user's credentials. The vulnerability is not exploitable by an ordinary site visitor without access to the Wagtail admin, and only affects sites using TableBlock. This issue has been patched in versions 6.3.8, 7.0.6, 7.2.3, and 7.3.1.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00503 43rd percentileScored 2026-11-07
Fix Fixed wagtail (wagtail): 6.3.8, 7.0.6, 7.2.3 +1wagtail (PyPI): 6.3.8, 7.0.6, 7.2.3 +1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
wagtailwagtailbefore 6.3.8; 6.4rc1 to before 7.0.6; 7.1rc1 to before 7.2.3; 7.3rc1 to before 7.3.16.3.8, 7.0.6, 7.2.3, 7.3.1Patch availableCNA
—wagtail (PyPI)before 6.3.86.3.8Patch availableGHSA-p5cm-246w-84jm
—wagtail (PyPI)6.4rc1 to before 7.0.67.0.6Patch availableGHSA-p5cm-246w-84jm
—wagtail (PyPI)7.1rc1 to before 7.2.37.2.3Patch availableGHSA-p5cm-246w-84jm
—wagtail (PyPI)7.3rc1 to before 7.3.17.3.1Patch availableGHSA-p5cm-246w-84jm
  • wagtail Vendorwagtail Affected before 6.3.8; 6.4rc1 to before 7.0.6; 7.1rc1 to before 7.2.3; 7.3rc1 to before 7.3.1 Fixed in 6.3.8, 7.0.6, 7.2.3, 7.3.1 Patch available CNA
  • wagtail (PyPI) Vendor— Affected before 6.3.8 Fixed in 6.3.8 Patch available GHSA-p5cm-246w-84jm
  • wagtail (PyPI) Vendor— Affected 6.4rc1 to before 7.0.6 Fixed in 7.0.6 Patch available GHSA-p5cm-246w-84jm
  • wagtail (PyPI) Vendor— Affected 7.1rc1 to before 7.2.3 Fixed in 7.2.3 Patch available GHSA-p5cm-246w-84jm
  • wagtail (PyPI) Vendor— Affected 7.3rc1 to before 7.3.1 Fixed in 7.3.1 Patch available GHSA-p5cm-246w-84jm

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:torchbox:wagtail:*:*:*:*:*:*:*:*before 6.3.8; 6.4 to before 7.0.6; 7.1 to before 7.2.3Vulnerablewagtail
cpe:2.3:a:torchbox:wagtail:7.3:-:*:*:*:*:*:*7.3Vulnerablewagtail
cpe:2.3:a:torchbox:wagtail:7.3:rc1:*:*:*:*:*:*7.3 rc1Vulnerablewagtail
  • cpe:2.3:a:torchbox:wagtail:*:*:*:*:*:*:*:* Versions before 6.3.8; 6.4 to before 7.0.6; 7.1 to before 7.2.3 Vulnerable ·wagtail
  • cpe:2.3:a:torchbox:wagtail:7.3:-:*:*:*:*:*:* Versions 7.3 Vulnerable ·wagtail
  • cpe:2.3:a:torchbox:wagtail:7.3:rc1:*:*:*:*:*:* Versions 7.3 rc1 Vulnerable ·wagtail

Remediation

  • Fix · CNA wagtail (wagtail) Fixed in 6.3.8, 7.0.6, 7.2.3, 7.3.1
  • Fix · GHSA-p5cm-246w-84jm wagtail (PyPI) Fixed in 6.3.8 Advisory →
  • Fix · GHSA-p5cm-246w-84jm wagtail (PyPI) Fixed in 7.0.6 Advisory →
  • Fix · GHSA-p5cm-246w-84jm wagtail (PyPI) Fixed in 7.2.3 Advisory →
  • Fix · GHSA-p5cm-246w-84jm wagtail (PyPI) Fixed in 7.3.1 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-28222
  2. 2026-10-03 Alias added: GHSA-p5cm-246w-84jm

References

Patch 4

Advisory 2

Other 5

  • 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-2024-26273 Wagtail regular expression denial-of-service via search query parsing CVSS 3.1MEDIUM 6.5
See all 22 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences