CVE-2024-45489

EUVD-2024-41508
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 92%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
the_browser_companyarc
𝑥
< 2024-08-26
ADP
Common Weakness Enumeration
References
https://arc.net/blog/CVE-2024-45489-incident-response
https://kibty.town/blog/arc/
https://news.ycombinator.com/item?id=41597250