Medium severity · published Apr 4, 2018
CVE-2017-18256
Brave Browser before 0.13.0 allows remote attackers to cause a denial of service (resource consumption) via a long alert() argument in JavaScript code, because window dialogs are…
6.5
CVSS
4.8%
EPSS
No
On KEV
Description
Brave Browser before 0.13.0 allows remote attackers to cause a denial of service (resource consumption) via a long alert() argument in JavaScript code, because window dialogs are mishandled.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)4.8% · higher than 92% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BB
Brave Browser · Brave
before 0.13.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-18256
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-18256
Exploit
https://hackerone.com/reports/176066
Exploit
https://www.exploit-db.com/exploits/44474/
More from Brave Browser
7.5
CVE-2016-10718
Brave Browser before 0.13.0 allows a tab to close itself even if the tab was not opened by a script, resulting in denial of service