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No exploitation reportedFix available

CVE-2019-11595

No exploitation reported by the sources we read.

  • Published2019-04-29
  • Fixed in0.9.5.15
  • WeaknessCWE-20

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2019-04-2915:29CVE publishedNVD

Versions per branch

NVD
Ublockorigin ublock origin
BranchAffectedFixed in
0.9< 0.9.5.150.9.5.15

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

  1. Update Ublockorigin ublock origin to 0.9.5.15

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Published
2019-04-29
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-cq4j-49w3-ppw7

Frequently asked questions

What is CVE-2019-11595?

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.

Is CVE-2019-11595 actively exploited?

Active exploitation of CVE-2019-11595 has not been confirmed. Its EPSS score was 2.4% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-11595?

CVE-2019-11595 has a CVSS v3 base score of 9 (CRITICAL severity), with vector string CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H.

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