CVE-2026-22674

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.

CVSS v3 4.8 MEDIUM

4.8^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.7 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/hashgraph/guardian/commit/ba8c566807848cf84360716438056d8d8d2c8362
https://github.com/hashgraph/guardian/pull/6190
https://www.vulncheck.com/advisories/hashgraph-guardian-stored-xss-via-branding-companyname-field

Configurations

No configuration.

History

18 Jun 2026, 22:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-18 22:16

Updated : 2026-06-22 16:16

NVD link : CVE-2026-22674

Mitre link : CVE-2026-22674

CVE.ORG link : CVE-2026-22674

JSON object : View

Products Affected

No product.

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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