Medium6.1Fortinet

Medium [CVE-2026-23573] SSL-VPN Reflected XSS

This medium-severity Fortinet advisory covers CVE-2026-23573 affecting FortiOS, FortiProxy.

FG-IR-26-150 Published Jul 14, 2026Updated by vendor Jul 14, 2026

CVE-2026-23573

Affected products & platforms

FortinetFortiGateFirewallFortiOSFortiProxyFortiSwitch

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Summary

CVSSv3 Score:

6.1

An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability [CWE-79] in FortiOS, FortiProxy, FortiPAM and FortiSwitch-Manager Agentless SSL-VPN may allow an authenticated remote user to execute code or commands via crafted requests.

Revised on 2026-07-14 00:00:00

Affected versions

FortiOS 7.6: 7.6.0 through 7.6.6
FortiOS 7.4: 7.4 all versions
FortiOS 7.2: 7.2 all versions
FortiPAM 1.8: 1.8.0
FortiPAM 1.7: 1.7 all versions
FortiPAM 1.6: 1.6 all versions
FortiPAM 1.5: 1.5 all versions
FortiPAM 1.4: 1.4 all versions
FortiPAM 1.3: 1.3 all versions
FortiPAM 1.2: 1.2 all versions
FortiPAM 1.1: 1.1 all versions
FortiPAM 1.0: 1.0 all versions
FortiProxy 7.4: 7.4.0 through 7.4.3
FortiProxy 7.2: 7.2.0 through 7.2.9

Official advisory · high-confidence parse· fetched 9 days ago·verify at source

Fixed versions

FortiOS 7.6: 7.6.7
FortiOS 7.4: migrate to a fixed release
FortiOS 7.2: migrate to a fixed release
FortiPAM 1.8: 1.8.1
FortiPAM 1.7: migrate to a fixed release
FortiPAM 1.6: migrate to a fixed release
FortiPAM 1.5: migrate to a fixed release
FortiPAM 1.4: migrate to a fixed release
FortiPAM 1.3: migrate to a fixed release
FortiPAM 1.2: migrate to a fixed release
FortiPAM 1.1: migrate to a fixed release
FortiPAM 1.0: migrate to a fixed release
FortiProxy 7.4: 7.4.4
FortiProxy 7.2: 7.2.10

Official advisory · high-confidence parse· fetched 9 days ago·verify at source

Mitigation checklist

Recommended fix / mitigation

Upgrade per the Affected/Solution table: FortiOS 7.6: 7.6.7; FortiOS 7.4: migrate to a fixed release; FortiOS 7.2: migrate to a fixed release; FortiPAM 1.8: 1.8.1; FortiPAM 1.7: migrate to a fixed release; ….

Official advisory · high-confidence parse· fetched 9 days ago·verify at source

Sources

Official and corroborating records used to build this advisory.

FortiGuard PSIRT Advisoriesofficial
Official vendor source used to discover this advisory; it remains the authority for affected products and remediation. Discovered from the machine-readable feed https://filestore.fortinet.com/fortiguard/rss/ir.xml; this link opens the Fortinet advisory index instead of the raw feed document.
Fortinet
Official vendor advisoryofficial
Official advisory page fetched and parsed; accepted detail fields are attributed to this page.
Fortinet
CVE.org CNA affected-product recordCVE.org
Structured CNA affected[] data independently confirmed the affected product scope; native advisory content remains authoritative.
CVE Program

Cross-references

Validate CVE metadata against the authoritative registries.

CVE-2026-23573NVD CVE.org MITRE

Official resources

FortiGate / FortiOS documentation & release notes (target: 7.6 / 7.4 / 7.2)
Release notes
This advisory names 7.6 / 7.4 / 7.2 as the first fixed releases — official upgrade documentation for FortiGate / FortiOS firewalls.
Fortinet Upgrade Path Tool
Official documentation
Official tool to plan a supported FortiOS upgrade path from your current build to the fixed release.
FortiProxy documentation & upgrade guides
Official documentation
This advisory names 7.6 / 7.4 / 7.2 as the first fixed releases — official upgrade documentation for FortiProxy.
FortiSwitch documentation & upgrade guides
Official documentation
This advisory names 7.6 / 7.4 / 7.2 as the first fixed releases — official upgrade documentation for FortiSwitch.

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