Kentico Xperience 13 is vulnerable to a stored cross-site scripting attack via a form component, allowing an attacker to hijack a victim user’s session and perform actions in their security context.
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Score 5.4 from GitHub Security Advisory (severity: HIGH) published 2026-01-05. NVD baseline CVSS 5.4; sources differ by 0.0.
Kentico Xperience 13 is vulnerable to a stored cross-site scripting attack via a form component, allowing an attacker to hijack a victim user’s session and perform actions in their security context.
January 5, 2026
January 22, 2026
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