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CVE-2021-32602

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-08-19 · updated 2026-06-17
• Weakness: CWE-79

Description

An improper neutralization of input during web page generation vulnerability (CWE-79) in FortiPortal GUI 6.0.4 and below, 5.3.6 and below, 5.2.6 and below, 5.1.2 and below, 5.0.3 and below, 4.2.2 and below, 4.1.2 and below, 4.0.4 and below may allow a remote and unauthenticated attacker to perform an XSS attack via sending a crafted request with an invalid lang parameter or with an invalid org.springframework.web.servlet.i18n.CookieLocaleResolver.LOCALE value.

Affected products

• Fortinet FortiPortal: from 4.0.0 through 4.0.4; from 4.1.0 through 4.1.2; from 4.2.0 through 4.2.2; from 5.0.0 through 5.0.3; from 5.1.0 through 5.1.2; from 5.2.0 through 5.2.6

References

• https://fortiguard.com/advisory/FG-IR-20-066
• https://fortiguard.com/advisory/FG-IR-20-066

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