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CVE-2026-54263— Wagtail: Reflected XSS in dynamic image URL generator view

Quick assessment

Affected
wagtail wagtail
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Wagtail wagtail是Wagtail组织的内容管理系统。 Wagtail存在跨站脚本漏洞，该漏洞源于动态图像URL生成器视图存在反射型跨站脚本问题，可能导致具有有限权限的编辑器账户用户特制URL，当高权限用户查看时，以该用户凭据执行操作。

CVSS 7.3 · High EPSS 0.36% · P27

Affected Version Matrix 3

VendorProduct Version RangeStatus
wagtail wagtail < 7.0.8 affected
>= 7.1.0, < 7.3.3 affected
>= 7.4.0, < 7.4.2 affected
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I. Basic Information for CVE-2026-54263

Vulnerability Information
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Vulnerability Title
Wagtail: Reflected XSS in dynamic image URL generator view
Source: CVE Program / CVE List V5
Vulnerability Description
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, reflected cross-site scripting (XSS) vulnerability exists on the dynamic image URL generator view within the Wagtail admin interface. A user with a limited-permission editor account for the Wagtail admin could craft a URL that, when viewed by a user with higher privileges, could perform actions with that user's credentials. The vulnerability is present for all sites, even if they do not enable the dynamic image serve view. 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/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 wagtail是Wagtail组织的内容管理系统。 Wagtail存在跨站脚本漏洞，该漏洞源于动态图像URL生成器视图存在反射型跨站脚本问题，可能导致具有有限权限的编辑器账户用户特制URL，当高权限用户查看时，以该用户凭据执行操作。
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 < 7.0.8 -

II. Public POCs for CVE-2026-54263

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 7483 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
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Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-54263

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Vendor Advisories for CVE-2026-54263 (1)

Same Patch Batch · wagtail · 2026-07-01 · 5 CVEs total

CVE-2026-54261 6.5 MEDIUM Wagtail: Improper permission handling in image preview
CVE-2026-54262 4.3 MEDIUM Wagtail: Pages translations can be created without page permissions when using simple_tran
CVE-2026-54260 4.3 MEDIUM Wagtail: Denial of service via unbounded filter specs in the image preview
CVE-2026-54259 4.3 MEDIUM Wagtail: Improper restriction handling on Documents and Images chosen endpoints

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-54263

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