VULNERABILITY INTELLIGENCE
CVE-2024-45489
CVSS score9.8 CRITICAL
EPSS probability1.24%
CISA KEVNot currently listed
Published2024-09-20
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Description
Arc before 2024-08-26 allows remote code execution in JavaScript boosts. Boosts that run JavaScript cannot be shared by default; however (because of misconfigured Firebase ACLs), it is possible to create or update a boost using another user's ID. This installs the boost in the victim's browser and runs arbitrary Javascript on that browser in a privileged context. NOTE: this is a no-action cloud vulnerability with zero affected users.
Weakness classification
- 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-284