What’s Vulnerable › Vulnerabilities

CVE-2019-11593

• Severity: high (CVSS 8.1 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-04-29 · updated 2026-06-17
• Weakness: CWE-94

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.

Affected products

• Adblockplus Adblock Plus: before 3.5.2 — fixed in 3.5.2

How to fix

Upgrade to a fixed version: Adblockplus Adblock Plus 3.5.2. Check the vendor advisory for mitigations.

References

• https://adblockplus.org/releases/adblock-plus-352-for-chrome-firefox-and-opera-released
• https://armin.dev/blog/2019/04/adblock-plus-code-injection/
• https://gitlab.com/eyeo/adblockplus/adblockpluschrome/issues/1
• https://gitlab.com/eyeo/adblockplus/adblockpluscore/issues/4
• https://news.ycombinator.com/item?id=19666504
• https://adblockplus.org/releases/adblock-plus-352-for-chrome-firefox-and-opera-released
• https://armin.dev/blog/2019/04/adblock-plus-code-injection/
• https://gitlab.com/eyeo/adblockplus/adblockpluschrome/issues/1
• https://gitlab.com/eyeo/adblockplus/adblockpluscore/issues/4
• https://news.ycombinator.com/item?id=19666504

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