CVE-2021-26092

MEDIUM

FortiProxy 1.2.0-1.2.9 & FortiOS 5.2.10-5.2.15 - Reflected XSS via Error Page

Title source: llm
STIX 2.1

Description

Failure to sanitize input in the SSL VPN web portal of FortiOS 5.2.10 through 5.2.15, 5.4.0 through 5.4.13, 5.6.0 through 5.6.14, 6.0.0 through 6.0.12, 6.2.0 through 6.2.7, 6.4.0 through 6.4.4; and FortiProxy 1.2.0 through 1.2.9, 2.0.0 through 2.0.1 may allow a remote unauthenticated attacker to perform a reflected Cross-site Scripting (XSS) attack by sending a request to the error page with malicious GET parameters.

References (1)

Core 1
Core References
Vendor Advisory x_refsource_confirm
https://fortiguard.com/psirt/FG-IR-20-199

Scores

CVSS v3 4.7
EPSS 0.0053
EPSS Percentile 67.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-79
Status published
Products (4)
fortinet/fortios 5.2.10 - 5.2.15
fortinet/fortiproxy 2.0.0
fortinet/fortiproxy 2.0.1
fortinet/fortiproxy 1.2.0 - 1.2.9
Published Feb 24, 2022
Tracked Since Feb 18, 2026