Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-42174— Kirby: User avatar creation, replacement and deletion are not gated by user update permissions

Quick assessment

Affected
getkirby kirby
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.

Kirby是Kirby开源的一套基于文件的内容管理系统（CMS）。 Kirby 4.9.0之前版本和5.4.0之前版本存在安全漏洞，该漏洞源于用户头像创建、替换和删除未受用户更新权限控制。

AI Predicted 5.6 Difficulty: Easy EPSS 0.24% · P15

Possible ATT&CK Techniques 1 AI

T1136.003 · Cloud Account

Affected Version Matrix 2

VendorProduct Version RangeStatus
getkirby kirby < 4.9.0 affected
>= 5.0.0, < 5.4.0 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-42174

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Kirby: User avatar creation, replacement and deletion are not gated by user update permissions
Source: CVE Program / CVE List V5
Vulnerability Description
Kirby is an open-source content management system. Prior to versions 4.9.0 and 5.4.0, user avatar creation, replacement and deletion are not gated by user update permissions. This issue has been patched in versions 4.9.0 and 5.4.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Kirby 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Kirby是Kirby开源的一套基于文件的内容管理系统（CMS）。 Kirby 4.9.0之前版本和5.4.0之前版本存在安全漏洞，该漏洞源于用户头像创建、替换和删除未受用户更新权限控制。
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
getkirby kirby < 4.9.0 -

II. Public POCs for CVE-2026-42174

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-42174

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-42174 (1)

Vendor Pages for CVE-2026-42174 (1)

Same Patch Batch · getkirby · 2026-05-09 · 4 CVEs total

CVE-2026-42069 Kirby: Read access to site, user and role information is not gated by permissions
CVE-2026-42137 Kirby: `pages.access/list` and `files.access/list` permissions are not consistently checke
CVE-2026-42051 Kirby: System API endpoint leaks license data and installed version to authenticated users

IV. Related Vulnerabilities

Same product: kirby
Same vendor: getkirby
Same weakness: CWE-862

V. Comments for CVE-2026-42174

No comments yet

Leave a comment