CVE-2021-26087

MEDIUM EPSS 22.9%

Published Mar 17, 20251y ago · Modified Jun 17, 20262w ago

6.1 CVSS 3.1

Medium

Published Mar 17, 2025 1y ago

Last Modified Jun 17, 2026 2w ago

Description

An improper neutralization of input during web page generation in FortiWLC version 8.6.0, version 8.5.3 and below, version 8.4.8 and below, version 8.3.3 web interface may allow both authenticated remote attackers and non-authenticated attackers in the same network as the appliance to perform a stored cross site scripting attack (XSS) via injecting malicious payloads in different locations.

CVSS Details

Base Score

6.1

Exploitability

2.8

Impact

2.7

Vector string

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector Network

Attack Complexity Low

Privileges Required None

User Interaction Required

Scope Changed

Confidentiality Low

Integrity Low

Availability None

Threat Intelligence

EPSS Exploit Probability

22.9% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-79 Cross-site Scripting Injection

Affected Products 4

Vendor	Product	Version	Range
fortinet	fortiwlc	*	≥8.4.0 – ≤8.4.2
fortinet	fortiwlc	*	≥8.4.4 – <8.5.4
fortinet	fortiwlc	8.3.3	any
fortinet	fortiwlc	8.6.0	any

References 1

fortiguard.fortinet.com https://fortiguard.fortinet.com/psirt/FG-IR-20-137

Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.