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CVE-2026-54261— Wagtail: Improper permission handling in image preview

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 wagtail是Wagtail组织的内容管理系统。 Wagtail存在权限许可和访问控制问题漏洞，该漏洞源于图像预览端点缺少权限检查，可能导致具有Wagtail管理员访问权限的用户预览任意图像。

CVSS 6.5 · Medium EPSS 0.34% · P25

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage

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-2026-54261

Vulnerability Information
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Vulnerability Title
Wagtail: Improper permission handling in image preview
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, due to a missing permission check on the image preview endpoint, a user with access to the Wagtail admin can preview any image. The existing data of the image object itself is not exposed. 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:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
不充分权限或特权的处理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Wagtail 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Wagtail wagtail是Wagtail组织的内容管理系统。 Wagtail存在权限许可和访问控制问题漏洞，该漏洞源于图像预览端点缺少权限检查，可能导致具有Wagtail管理员访问权限的用户预览任意图像。
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-2026-54261

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III. Intelligence Information for CVE-2026-54261

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Vendor Advisories for CVE-2026-54261 (1)

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

CVE-2026-54263 7.3 HIGH Wagtail: Reflected XSS in dynamic image URL generator view
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-280

V. Comments for CVE-2026-54261

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