CVE-2026-22674

MEDIUM EPSS 7.5%
Published Jun 18, 20262w ago · Modified Jun 23, 20261w ago
4.8 CVSS 4.0
Medium
Find Similar
Published Jun 18, 2026 2w ago
Last Modified Jun 23, 2026 1w ago

Description

Hashgraph Guardian through 3.6.0, 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 Details

Base Score
4.8
Exploitability
—
Impact
—
Vector string
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required High
User Interaction P
Scope X

Threat Intelligence

EPSS Exploit Probability
7.5% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-79 Cross-site Scripting Injection

References 3

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

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.