6.1

CVE-2021-26092: fortinet fortinet fortios, fortiproxy Cross-site Scripting

CVSS: 6.1v3.1MediumModified
Published 24-02-2022Last modified 22-10-2024
Open JSON

Vulnerability summary

CVE-2021-26092 is a medium (CVSS 6.1) Cross-site Scripting vulnerability in fortinet fortinet fortios, fortiproxy. EPSS estimates a 1.08% chance of exploitation in the next 30 days, higher than 64.5% of scored vulnerabilities.

Overall risk
25/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.1/10
010
Medium · v3.1 (NVD)
EPSS score
1.08%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 24-02-2022
    PublishedVulnerability first disclosed.
  2. 22-10-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

1.08%

Chance of exploitation in the next 30 days

Percentile

65%

Versus all other CVEs

30-day change

0.00 pp

From 1.08% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.08%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Fortinet3 products
  • fortinet fortios, fortiproxyFortiOS 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; FortiProxy 1.2.0 through 1.2.9, 2.0.0 through 2.0.1
  • fortios≥ 5.2.10, ≤ 5.2.15 | ≥ 5.4.0, ≤ 5.4.13 | ≥ 5.6.0, ≤ 5.6.14 | ≥ 6.0.0, ≤ 6.0.12 | ≥ 6.2.0, ≤ 6.2.7 | ≥ 6.4.0, ≤ 6.4.4
  • fortiproxy≥ 1.2.0, ≤ 1.2.9 | 2.0.0 | 2.0.1

1 vendor · 3 products

References

1 links