CVE-2019-11593

HIGH 8.1CVE-2019-11593 · Published 29/04/2019 · updated 17/06/2026

In short

CVE-2019-11593 is a HIGH (CVSS 8.1) vulnerability affecting adblock plus (adblockplus).
Chance of exploitation in the next 30 days (EPSS): 2.5%, higher than 84.7% of all vulnerabilities.
Fix: update to 3.5.2 or later.

Package	Affected versions	Patched versions
adblock plus adblockplus	`< 3.5.2`	`3.5.2`

Description

In Adblock Plus before 3.5.2, 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

adblockplus.org/releases/adblock-plus-352-for-chrome-firefox-and-opera-released · Vendor Advisory
armin.dev/blog/2019/04/adblock-plus-code-injection · Mitigation
gitlab.com/eyeo/adblockplus/adblockpluschrome/issues/1 · Third Party Advisory
gitlab.com/eyeo/adblockplus/adblockpluscore/issues/4 · Third Party Advisory
news.ycombinator.com/item · Third Party Advisory

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