Medium severity4.8NVD Advisory· Published Jun 18, 2026· Updated Jul 14, 2026

CVE-2026-22674

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Hashgraph/Guardianinferred2 versions
<=3.5.0+ 1 more
- (no CPE)range: <=3.5.0
- (no CPE)range: <=3.6.0

Patches

Vulnerability mechanics

References

github.com/hashgraph/guardian/commit/ba8c566807848cf84360716438056d8d8d2c8362nvd
github.com/hashgraph/guardian/pull/6190nvd
www.vulncheck.com/advisories/hashgraph-guardian-stored-xss-via-branding-companyname-fieldnvd

News mentions

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cvss	0.312
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000