CVE-2026-22674— Hashgraph Guardian Stored XSS via branding companyName field
Possible ATT&CK Techniques 1AI
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I. Basic Information for CVE-2026-22674
Vulnerability Information
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Vulnerability Title
Hashgraph Guardian Stored XSS via branding companyName field
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: NVD (National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-22674
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|---|
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Patches & Fixes for CVE-2026-22674 (2)
Vendor Advisories for CVE-2026-22674 (1)
IV. Related Vulnerabilities
Same product: guardian
- CVE-2025-40904
HTML injection in Smart Polling in Guardian/CMC before 26.1. - CVE-2025-40903
HTML injection in Schedule Restore Archive in Guardian/CMC b - CVE-2025-40902
HTML injection in Users in Guardian/CMC before 26.1.0 - CVE-2025-40901
HTML injection in Credentials Manager in Guardian/CMC before - CVE-2025-40900
Angular template injection in Reports in Guardian/CMC before
Same weakness: CWE-79
- CVE-2026-57656
WordPress Hester Core plugin <= 1.1.8 - Cross Site Scripting - CVE-2026-57651
WordPress Ghost Kit plugin <= 3.6.0 - Cross Site Scripting ( - CVE-2026-57650
WordPress Magazine Blocks plugin <= 1.8.3 - Cross Site Scrip - CVE-2026-57638
WordPress Fluent Booking plugin <= 2.1.0 - Cross Site Script - CVE-2026-57629
WordPress StatCounter plugin <= 2.1.1 - Cross Site Scripting
V. Comments for CVE-2026-22674
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