CVE-2015-2692: AdBlock before 2.21 allows remote attackers to block arbitrary resources on arbitrary websites and to disable

Q: How do I fix CVE-2015-2692?

adblock: upgrade to newer than 2.20.1. Exact commands for each OS are on this page.

Q: Is CVE-2015-2692 being exploited?

CVE-2015-2692 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2015-2692 affect?

CVE-2015-2692 affects adblock. Severity is critical (CVSS 10.0). AdBlock before 2.21 allows remote attackers to block arbitrary resources on arbitrary websites and to disable arbitrary blocking filters.

Q: How urgent is CVE-2015-2692?

Priority 65/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

CRITICAL 10.0REMOTEUPGRADE

CVE-2015-2692 is a critical-severity flaw (CVSS 10.0) affecting adblock. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

AdBlock before 2.21 allows remote attackers to block arbitrary resources on arbitrary websites and to disable arbitrary blocking filters.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	10.0 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.1% (top 19%)
CISA exploited list	No
Weakness	CWE-284
Published	2017-06-08
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: adblock

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2017-06-08 21:29 UTCPublished CVE record published
2026-06-17 00:24 UTCUpdated Record last modified

adblock adblock UPGRADE

Affected: <= 2.20.1

Fixed in: newer than 2.20.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy adblock || rpm -q adblock || adblock --version

2. UPGRADE to newer than 2.20.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade adblock

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade adblock

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2015-2692?

adblock: upgrade to newer than 2.20.1. Exact commands for each OS are on this page.

Is CVE-2015-2692 being exploited?

CVE-2015-2692 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2015-2692 affect?

CVE-2015-2692 affects adblock. Severity is critical (CVSS 10.0). AdBlock before 2.21 allows remote attackers to block arbitrary resources on arbitrary websites and to disable arbitrary blocking filters.

How urgent is CVE-2015-2692?

Priority 65/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2019-11594 HIGH 8.1 UPGRADE In AdBlock before 3.45.0, the $rewrite filter option allows filter-list maintainers to run arbitrary code in a

References

← Back to latest CVEs