CVE-2026-109308
Craft CMS 4.0.0 before 4.18.7 and 5.0.0 before 5.10.14 passes the raw 'updates' request parameter…
- Risk score
- 61/100
- CVSS
- 8.8 v3.1
- Exploit chance (30 days)
- 0.5%
- Published
- 12 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- Craft CMS 4.0.0 before 4.18.7 and 5.0.0 before 5.10.14 passes the raw 'updates' request parameter in AppController::actionCacheUpdates to UpdatesModel without Component::cleanseConfig(), allowing behavior and event-handler injection. Authenticated control panel users with the performUpdates permission or Updates-utili…
- Affected
- See advisory
- Fix
- Upgrade the product to 4.18.7, 5.0.0 or 5.10.14 (whichever matches your release line), or later.
- Exploitation
- No known exploitation
Why it is Amber
- CVSS 8.8 high
References
Original description
Craft CMS 4.0.0 before 4.18.7 and 5.0.0 before 5.10.14 passes the raw 'updates' request parameter in AppController::actionCacheUpdates to UpdatesModel without Component::cleanseConfig(), allowing behavior and event-handler injection. Authenticated control panel users with the performUpdates permission or Updates-utility access can supply 'as' or 'on' keys, such as an AttributeTypecastBehavior gadget, to execute arbitrary code.
Last activity 12 Oct 2026. Patch Forecast updates every hour.