critical

GHSA-g7vv-4mjj-6fgm

Account Takeover & Privilege-Escalation To Admin via Stored XSS in Menu Node Name Rendered in Page Properties Configure Dialog

In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

No source gives a CVSS score.

Trivy's own label is CRITICAL. Rated critical by Ruby Advisory DB.

Description

An improper input sanitization vulnerability in the Page Properties menu node rendering allows Author-level users to inject stored JavaScript that executes in an Admin's browser when they open the Configure dialog for a page containing the malicious node. The payload executes with the Admin's session privileges, allowing an attacker to perform administrative actions and create an attacker-controlled administrator account, resulting in full account takeover and privilege escalation.

Affected packages and fixed versions

Source	Package	Fixed in
rubygems::Ruby Advisory Database	alchemy_cms	>= 8.3.8

References

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