Vulnerability 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.
CVSS Score
CRITICAL
Related Weaknesses (CWE)
References
- https://arc.net/blog/CVE-2024-45489-incident-response
- https://kibty.town/blog/arc/
- https://news.ycombinator.com/item?id=41597250
FAQ
What is CVE-2024-45489?
CVE-2024-45489 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 cre...
How severe is CVE-2024-45489?
CVE-2024-45489 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2024-45489?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.