Hashgraph Guardian Stored XSS via branding companyName field_CVE-2026-22674

4.8 / 10

MEDIUM

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

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.

Basic Information

ID CVE-2026-22674

Source VulnCheck

Published Jun 18, 2026 at 21:08

Affected Product

Vendor hashgraph

Product guardian

Affected Versions hashgraph guardian 0

CWE Classification

CWE-79

References

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    "published": "2026-06-18T21:08:05.431Z",
    "modified": "2026-06-18T21:08:05.431Z",
    "type": "cve",
    "title": "Hashgraph Guardian Stored XSS via branding companyName field",
    "source": "VulnCheck",
    "references": "https://github.com/hashgraph/guardian/pull/6190\nhttps://github.com/hashgraph/guardian/commit/ba8c566807848cf84360716438056d8d8d2c8362\nhttps://www.vulncheck.com/advisories/hashgraph-guardian-stored-xss-via-branding-companyname-field",
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