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Medium severity6.3NVD Advisory· Published Dec 8, 2021· Updated Jun 17, 2026

CVE-2021-26103

CVE-2021-26103

Description

An insufficient verification of data authenticity vulnerability (CWE-345) in the user interface of FortiProxy verison 2.0.3 and below, 1.2.11 and below and FortiGate verison 7.0.0, 6.4.6 and below, 6.2.9 and below of SSL VPN portal may allow a remote, unauthenticated attacker to conduct a cross-site request forgery (CSRF) attack . Only SSL VPN in web mode or full mode are impacted by this vulnerability.

Affected products

6
  • Fortinet/Fortiproxy2 versions
    cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:*range: >=1.2.0,<=1.2.11
    • (no CPE)range: <=2.0.3, <=1.2.11
  • Fortinet/Fortios2 versions
    cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*range: >=5.6.0,<=5.6.14
    • cpe:2.3:o:fortinet:fortios:7.0.0:*:*:*:*:*:*:*
  • Fortinet/Fortigatellm-fuzzy
    Range: 7.0.0, <=6.4.6, <=6.2.9
  • Fortinet/Fortinetcpe-rescue
    Range: FortiOS 7.0.0, 6.4.5, 6.4.4, 6.4.3, 6.4.2, 6.4.1, 6.4.0, 6.2.9, 6.2.8, 6.2.7, 6.2.6, 6.2.5, 6.2.4, 6.2.3, 6.2.2, 6.2.1, 6.2.0, 6.0.14, 6.0.13, 6.0.12, 6.0.11, 6.0.10, 6.0.9, 6.0.8, 6.0.7, 6.0.6, 6.0.5, 6.0.4, 6.0.3, 6.0.2, 6.0.1, 6.0.0, 5.6.14, 5.6.13, 5.6.12, 5.6.11, 5.6.10, 5.6.9, 5.6.8, 5.6.7, 5.6.6, 5.6.5, 5.6.4, 5.6.3, 5.6.2, 5.6.1, 5.6.0

Patches

Vulnerability mechanics

References

1

News mentions

0

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