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

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-109306— Craft CMS 5.0.0 before 5.10.14 Missing Authorization via app/switch-to-licensed-edition

Quick assessment

Affected
craftcms cms
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.

Craft CMS 5.0.0 至 5.10.14（不含 5.10.14）版本中存在一个缺失授权验证的安全漏洞，位于 方法中，导致任何经过身份验证的用户都可以更改已安装的版本。低权限的前端用户可以在授权版本不匹配的情况下调用该操作路由，从而在项目的配置中持久性地降级站点版本，且管理员无法通过控制面板恢复这一更改。

CVSS 5.9 · Medium EPSS 0.23% · P13

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts

Affected Version Matrix 2

VendorProduct Version RangeStatus
craftcms cms 5.0.0< 5.10.14 affected
5.10.14 unaffected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-109306

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
Craft CMS 5.0.0 before 5.10.14 Missing Authorization via app/switch-to-licensed-edition
Source: CVE Program / CVE List V5
Vulnerability Description
Craft CMS from 5.0.0 before 5.10.14 contains a missing authorization vulnerability in AppController::actionSwitchToLicensedEdition() that lets any authenticated user change the installed edition. Low-privileged front-end users can call the action route when the licensed edition mismatches to persistently downgrade the site edition in project config, which admins cannot reverse from the control panel.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
craftcms cms 5.0.0 ~ 5.10.14 -

II. Public POCs for CVE-2026-109306

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

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-109306

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-109306 (2)

Same Patch Batch · craftcms · 2026-10-12 · 5 CVEs total

CVE-2026-109308 8.8 HIGH Craft CMS 4.0.0 before 4.18.7 and 5.0.0 before 5.10.14 RCE via actionCacheUpdates Behavior
CVE-2026-109305 8.8 HIGH Craft CMS 5.10.2 before 5.10.14 Twig Sandbox Bypass RCE via has some/has every
CVE-2026-109304 4.9 MEDIUM Craft CMS 4.0.0 before 4.18.7 and 5.0.0 before 5.10.14 Arbitrary File Read via Twig create
CVE-2026-109307 4.7 MEDIUM Craft CMS 5.0.0 before 5.10.14 DOM XSS via returnUrl in 2FA Verification

IV. Related Vulnerabilities

Same product: cms
Same vendor: craftcms
Same weakness: CWE-862

V. Comments for CVE-2026-109306

No comments yet

Leave a comment