CVE-2019-11594

HIGH 8.1CVE-2019-11594 · Published 29/04/2019 · updated 17/06/2026

In short

CVE-2019-11594 is a HIGH (CVSS 8.1) vulnerability affecting adblock (getadblock).
Chance of exploitation in the next 30 days (EPSS): 2.4%, higher than 84.1% of all vulnerabilities.
Fix: update to 3.45.0 or later.

Package	Affected versions	Patched versions
adblock getadblock	`< 3.45.0`	`3.45.0`

Description

In AdBlock before 3.45.0, 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.

References

armin.dev/blog/2019/04/adblock-plus-code-injection · Mitigation
blog.getadblock.com/adblock-for-chrome-3-45-0-resolving-a-potential-security-risk-b21647a26df6 · Vendor Advisory
news.ycombinator.com/item · Third Party Advisory

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