CVE-2019-11595

Public Exploit

Description

In uBlock before 0.9.5.15, the $rewrite filter option allows filter-list maintainers to run arbitrary code in a client-side session when a web service loads a script for execution using XMLHttpRequest or Fetch, and the script origin has an open redirect.

Category

9.0
CVSS
Severity: Critical
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.94% Top 25%
Third-Party Advisory armin.dev Third-Party Advisory ycombinator.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://armin.dev/blog/2019/04/adblock-plus-code-injection/ exploit third party advisory mitigation
https://news.ycombinator.com/item?id=19666504 third party advisory

Frequently Asked Questions

What is the severity of CVE-2019-11595?
CVE-2019-11595 has been scored as a critical severity vulnerability.
How to fix CVE-2019-11595?
To fix CVE-2019-11595, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-11595 being actively exploited in the wild?
It is possible that CVE-2019-11595 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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