CVE detail
CVE-2026-48558: SimpleHelp Authentication Bypass Vulnerability
Source: CISA Known Exploited Vulnerabilities catalog · back to feed
Vendor / product
SimpleHelp · SimpleHelp
- Date added (KEV)
- Jun 29, 2026
- CISA due date
- Jul 02, 2026
- Ransomware campaign use
- Unknown
Required action
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
Vendor fix: Vendor advisory
Scorifya interpretation
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Plain English
Technical detail
From CISA
SimpleHelp contains an authentication bypass vulnerability in the OIDC authentication flow. When OIDC authentication is configured, identity tokens submitted during login are accepted without verifying their cryptographic signature. In a vulnerable configuration, a remote, unauthenticated attacker can submit a forged token containing arbitrary identity claims to obtain a fully authenticated technician session. In some configurations, this may also allow bypass of multi-factor authentication.
https://simple-help.com/security/simplehelp-security-update-2026-05 ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-48558
See what attackers can see on your domain
This vulnerability is on CISA's Known Exploited Vulnerabilities list, so it is being exploited in the wild right now. Scorifya can't test for SimpleHelp directly, but in about 30 seconds it shows what your own domain exposes publicly across TLS, security headers, DNS, and cookies: the surface attackers probe first.
SOC 2 compliance
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See Scorifya Controls →References
- https://horizon3.ai/attack-research/disclosures/cve-2026-48558-simplehelp-authentication-bypass-iocs/
- https://simple-help.com/release-news
- https://simple-help.com/security/simplehelp-security-update-2026-05
- https://blackpointcyber.com/blog/a-djinn-in-the-machine-taskweavers-node-js-intrusion-chain/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-48558
Other recent CVEs from SimpleHelp
- CVE-2024-57726SimpleHelp — SimpleHelp Missing Authorization Vulnerability
- CVE-2024-57728SimpleHelp — SimpleHelp Path Traversal Vulnerability
- CVE-2024-57727SimpleHelp — SimpleHelp Path Traversal Vulnerability