CVE-2026-19986
A weakness has been identified in Adblock for Youtube Extension up to 7.2.1 on Chrome. The impacted element is the function updateDynamicRules of the file contentscript.js of the component Event Listener. This manipulation of the argument yt-anti-adblock-detected causes improper authorization. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Published:Aug 17, 2026
Last Modified:Aug 19, 2026
EPS:Aug 17, 2026
EPSS Score:0.00242
CVSS Score:5.4
Affected Products
Vendor
Product
Action
Vendor
Adblock For Youtube Extension
Product
Adblock For Youtube Extension
Adblock For Youtube Extension
Adblock For Youtube Extension
Exploits
No exploit reference
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
References
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
