CVE-2026-82813: BEN Group TubeBuddy for YouTube Extension tubebuddymaster1.js TBGlobal.GetToken data authenticity

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-31 · updated 2026-09-01
Weakness: CWE-345

Description

A vulnerability was detected in BEN Group TubeBuddy for YouTube Extension up to 5.8.4 on Chrome. This impacts the function TBGlobal.GetToken of the file tubebuddymaster1.js. The manipulation of the argument t/c/r results in insufficient verification of data authenticity. It is possible to launch the attack remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure.

Affected products

BEN Group TubeBuddy for YouTube Extension: 5.8.0, 5.8.1, 5.8.2, 5.8.3, 5.8.4

References

https://github.com/xryj920/chrome_extensions/blob/main/BEN%20Group%2C%20Inc.%20TubeBuddy%20for%20YouTube%205.8.4%20allows%20authentication%20token%20overwrite%20through%20an%20unauthenticated%20redirect%20URL%20handler
https://vuldb.com/cve/CVE-2026-82813
https://vuldb.com/submit/875303
https://vuldb.com/vuln/397231
https://vuldb.com/vuln/397231/cti

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