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CVE-2026-28223— Wagtail: Improper escaping of HTML (Cross-site Scripting) in simple_translation admin interface

Quick assessment

Affected
wagtail wagtail
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Wagtail是Wagtail开源的一套开源的内容管理系统（CMS）。 Wagtail 6.3.8之前版本、7.0.6之前版本、7.2.3之前版本和7.3.1之前版本存在跨站脚本漏洞，该漏洞源于wagtail.contrib.simple_translation模块的确认消息存在存储型跨站脚本，可能导致执行任意JavaScript代码。

CVSS 6.1 · Medium EPSS 0.46% · P38
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I. Basic Information for CVE-2026-28223

Vulnerability Information
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Vulnerability Title
Wagtail: Improper escaping of HTML (Cross-site Scripting) in simple_translation admin interface
Source: CVE Program / CVE List V5
Vulnerability Description
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 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. This issue has been patched in versions 6.3.8, 7.0.6, 7.2.3, and 7.3.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
Wagtail 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Wagtail是Wagtail开源的一套开源的内容管理系统（CMS）。 Wagtail 6.3.8之前版本、7.0.6之前版本、7.2.3之前版本和7.3.1之前版本存在跨站脚本漏洞，该漏洞源于wagtail.contrib.simple_translation模块的确认消息存在存储型跨站脚本，可能导致执行任意JavaScript代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
wagtail wagtail < 6.3.8 -

II. Public POCs for CVE-2026-28223

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III. Intelligence Information for CVE-2026-28223

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Patches & Fixes for CVE-2026-28223 (4)

Vendor Advisories for CVE-2026-28223 (1)

Vendor Pages for CVE-2026-28223 (4)

IV. Related Vulnerabilities

Same product: wagtail
Same vendor: wagtail
Same weakness: CWE-79

V. Comments for CVE-2026-28223

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