Medium

Wagtail Vulnerable to Cross-site Scripting in simple_translation admin interface

  • Disclosed: 03.03.2026
  • Updated: 11.10.2026 14:17

Impact

A stored Cross-site Scripting (XSS) vulnerability exists on confirmation messages within the wagtail.contrib.simple_translation module. A user with access to the Wagtail admin area may create a page with a specially-crafted title which, when another user performs the "Translate" action, causes arbitrary JavaScript code to run. 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.

Patches

Patched versions have been released as Wagtail 6.3.8, 7.0.6, 7.2.3 and 7.3.1.

Workarounds

None

Acknowledgements

Many thanks to Guan Chenxian (@GCXWLP) for reporting this issue.

For more information

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Affected software

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PlatformPackageVulnerable versionsFixed in
Python (PyPI) wagtail < 6.3.8, >= 6.4rc1, < 7.0.6, >= 7.1rc1, < 7.2.3, >= 7.3rc1, < 7.3.1 6.3.8, 7.0.6, 7.2.3, 7.3.1

References

CVSS score 6.1/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N
Weakness (CWE)
CWE-79
Platform
Python (PyPI)
Package
wagtail
Disclosed
03.03.2026
Updated
11.10.2026 14:17

Sources and licenses

OSV / GitHub Advisory Database - PYSEC-2026-2308 - PyPA Advisory Database; CC BY 4.0

OSV / GitHub Advisory Database - GHSA-p4v8-rw59-93cq - CC BY 4.0

Vulnerability history: wagtail

All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (30) in the archive
Total entries
30
First → latest
04.2020 08.2026
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • High 5
  • Medium 22
  • Low 3

Disclosures per year

  1. 2020: 3
  2. 2021: 2
  3. 2022: 1
  4. 2023: 3
  5. 2024: 3
  6. 2025: 0
  7. 2026: 18
Severity:
  1. High · 7.3 CVE-2026-54263 >= 7.3, < 7.3.3, >= 7.4, < 7.4.2 7.3.3, 7.4.2
  2. Wagtail Vulnerable to Cross-site Scripting in simple_translation admin interface this entry
    Medium · 6.1 CVE-2026-28223 < 6.3.8, >= 6.4rc1, < 7.0.6, >= 7.1rc1, < 7.2.3, >= 7.3rc1, < 7.3.1 6.3.8, 7.0.6, 7.2.3, 7.3.1
  3. High · 6.5 CVE-2024-39317 >= 6.0, < 6.0.6, >= 6.1, < 6.1.3, >= 2.0, < 5.2.6 6.0.6, 6.1.3, 5.2.6
  4. High · 6.4 CVE-2023-28836 >= 1.5, < 4.1.4, >= 4.2, < 4.2.2 4.1.4, 4.2.2
  5. High · 6.1 CVE-2021-29434 < 2.11.7, >= 2.12, < 2.12.4 2.11.7, 2.12.4
  6. High · 5.7 CVE-2020-15118 >= 2.8rc1, < 2.9.3, < 2.7.4 2.9.3, 2.7.4

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