Fortinet FortiWeb path traversal flaw, actively exploited
Vulnerability
Summary
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Fortinet FortiWeb path traversal is being actively exploited to create new admin users on exposed devices without authentication, creating immediate takeover risk for internet-facing systems. The flaw affects FortiWeb 8.0.1 and earlier and is fixed in 8.0.2. Administrators should treat exposed management interfaces as at risk and verify whether unauthorized accounts or suspicious requests are present.
Related Happenings
FortiClient EMS improper access control flaw (CVE-2026-35616)
Vulnerability
First: 05.04.2026 21:45
Last: 05.04.2026 21:45
Sources 1
About this happening:
**CVE-2026-35616** is being **actively exploited** against **FortiClient Enterprise Management Server (EMS)**, putting exposed **7.4.5 and 7.4.6** deployments at risk of remote co...
FortiClient EMS improper access control flaw (CVE-2026-35616)
VulnerabilityAbout this happening: **CVE-2026-35616** is being **actively exploited** against **FortiClient Enterprise Management Server (EMS)**, putting exposed **7.4.5 and 7.4.6** deployments at risk of remote co...
Fortinet FortiClient EMS SQL injection actively exploited SQL injection flaw (CVE-2026-21643)
Vulnerability
First: 30.03.2026 10:48
Last: 30.03.2026 10:48
Sources 1
About this happening:
Active exploitation of **CVE-2026-21643** is putting **Fortinet FortiClient EMS** deployments at risk of **unauthenticated arbitrary code or command execution** on unpatched syste...
Fortinet FortiClient EMS SQL injection actively exploited SQL injection flaw (CVE-2026-21643)
VulnerabilityAbout this happening: Active exploitation of **CVE-2026-21643** is putting **Fortinet FortiClient EMS** deployments at risk of **unauthenticated arbitrary code or command execution** on unpatched syste...
FortiOS SSO authentication bypass (CVE-2026-24858)
Vulnerability
First: 28.01.2026 06:49
Last: 28.01.2026 06:49
Sources 1
About this happening:
**CVE-2026-24858** is a **critical FortiOS authentication bypass** affecting **FortiOS**, **FortiManager**, and **FortiAnalyzer**, and it is being **actively exploited in the wild...
FortiOS SSO authentication bypass (CVE-2026-24858)
VulnerabilityAbout this happening: **CVE-2026-24858** is a **critical FortiOS authentication bypass** affecting **FortiOS**, **FortiManager**, and **FortiAnalyzer**, and it is being **actively exploited in the wild...
Latest development: 10.03.2026 18:21
SentinelOne said attackers are abusing FortiGate NGFW appliances through known vulnerabilities and weak credentials, including CVE-2026-24858, to steal configuration files and service account credentials from healthcare, government, and managed service provider environments.
Fortinet FortiCloud SSO mitigation guidance
Advisory/Mitigation
First: 28.01.2026 01:19
Last: 28.01.2026 01:19
Sources 1
About this happening:
**Fortinet** advised customers to **restrict administrative access** and **disable FortiCloud SSO** to reduce abuse of an **actively exploited** authentication bypass affecting de...
Fortinet FortiCloud SSO mitigation guidance
Advisory/MitigationAbout this happening: **Fortinet** advised customers to **restrict administrative access** and **disable FortiCloud SSO** to reduce abuse of an **actively exploited** authentication bypass affecting de...
Fortinet CVE-2025-59718 mitigation guidance
Advisory/Mitigation
First: 23.01.2026 12:39
Last: 23.01.2026 12:39
Sources 1
About this happening:
**Fortinet** told customers to immediately harden **FortiCloud SSO** exposure for **CVE-2025-59718**, because attackers are still abusing the flaw against **fully patched firewall...
Fortinet CVE-2025-59718 mitigation guidance
Advisory/MitigationAbout this happening: **Fortinet** told customers to immediately harden **FortiCloud SSO** exposure for **CVE-2025-59718**, because attackers are still abusing the flaw against **fully patched firewall...
Timeline
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14.11.2025 04:41 1 articles · 6mo ago
FortiWeb path traversal abuse first spotted on exposed devices
Exploitation ObservedDefused identified an unknown Fortinet exploit on exposed FortiWeb devices on October 6, with attackers using the path traversal flaw to create admin accounts without authentication.
Show sources
- Fortinet FortiWeb flaw with public PoC exploited to create admin users — www.bleepingcomputer.com — 14.11.2025 04:41
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14.11.2025 04:41 2 articles · 6mo ago
Researchers confirm FortiWeb path traversal flaw and 8.0.2 fix
Technical Analysis UpdateResearchers from PwnDefend, Defused, watchTowr Labs, and Rapid7 confirmed that FortiWeb 8.0.1 and earlier are affected by a path traversal flaw at /api/v2.0/cmdb/system/admin%3f/../../../../../cgi-bin/fwbcgi, where HTTP POST requests can create local admin-level accounts; the issue is fixed in FortiWeb 8.0.2, and defenders are advised to review logs, unusual administrative accounts, and access from suspicious IPs.
Show sources
- Fortinet FortiWeb flaw with public PoC exploited to create admin users — www.bleepingcomputer.com — 14.11.2025 04:41
- Fortinet FortiWeb flaw with public PoC exploited to create admin users — www.bleepingcomputer.com — 14.11.2025 04:41