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Advisories

Hashgraph Guardian Stored XSS via branding companyName field

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severity
medium
date
Affecting

  • Guardian <= 3.6.0, fixed in commit ba8c566

CWE
  • CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSS
4.8
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
Credit
Christ Bouchuen
Description
Hashgraph Guardian through 3.5.0, fixed in commit ba8c566, contains a stored cross-site scripting vulnerability that allows authenticated users with the STANDARD_REGISTRY role to inject malicious scripts by submitting a crafted companyName value via the branding configuration API endpoint. Attackers can exploit the unsanitized innerHTML assignment in the branding service to execute arbitrary JavaScript in the browser of every authenticated user on every page load.

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