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CVE Record

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

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

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2015-2692 affected AdBlock before version 2.21. A remote attacker could make the extension block chosen resources on websites or disable selected blocking filters. The business impact is browser-side trust and content integrity, not server compromise based on the provided sources.

Executive priority

Prioritize as a hygiene and endpoint control issue. It is unlikely to be a direct infrastructure emergency from the provided evidence, but outdated browser extensions can weaken user protections and create avoidable business risk.

Technical view

The CVE describes filter injection affecting AdBlock before 2.21. Remote attackers could alter client-side filtering decisions, including blocking arbitrary resources on arbitrary sites and disabling arbitrary blocking filters. The provided bundle does not include CVSS, CWE, CPEs, or detailed vendor advisory data.

Likely exposure

Exposure is limited to users running AdBlock versions earlier than 2.21. The bundle does not identify enterprise platforms, operating systems, browsers, or CPEs. Organizations should treat exposure as endpoint/browser-extension inventory driven.

Exploitation context

The CVE is not listed as CISA KEV in the provided data. The sources describe remote attacker capability, but the bundle does not provide evidence of active exploitation, exploit availability, or exploitation in the wild.

Researcher notes

The public bundle is sparse: no CVSS vector, CWE, CPE, or detailed affected matrix is provided. Analysis should remain scoped to AdBlock before 2.21 and the documented ability to manipulate blocking filters and resource blocking behavior.

Mitigation direction

  • Inventory managed browsers for AdBlock extension versions.
  • Upgrade AdBlock installations earlier than 2.21.
  • Remove unmanaged or obsolete AdBlock installations where updates cannot be verified.
  • Check extension vendor guidance for any additional remediation details.
  • Prefer centrally managed browser extensions for enterprise users.

Validation and detection

  • Confirm installed AdBlock versions across managed endpoints.
  • Verify no users remain on versions before 2.21.
  • Review browser extension management logs for unauthorized legacy installs.
  • Check whether security tooling detects outdated browser extensions.
  • Document any unmanaged browsers outside central inventory.
Prepared
Confidence
medium
Sources
4

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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CVE-2015-2692 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.