CVE-2026-86197
Grav before 2.0.20 Cross-Site Scripting via Assets Sandbox
Description
Grav before 2.0.20 contains a cross-site scripting vulnerability in the Twig sandbox policy that allowlists addJs and addCss methods on Grav\Common\Assets without proper output escaping. Page editors can inject arbitrary script by registering malicious assets or injecting attributes, which are rendered unescaped into document head tags and executed for all visitors including administrators.
No summary for this CVE yet.
Weaknesses
Affected Products
getgrav
oss-projectaka grav, grav-plugin-admin, getgrav/grav
Exploitability
No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.
Attack Graph
Products CVE Techniques Tactics
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MITRE ATT&CK
2 techniques Execution
Initial Access
References
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