6.1

CVE-2021-43063: fortinet fortinet fortiweb Cross-site Scripting

CVSS: 6.1v3.1MediumModified
Published 08-12-2021Last modified 25-10-2024
Open JSON

Vulnerability summary

CVE-2021-43063 is a medium (CVSS 6.1) Cross-site Scripting vulnerability in fortinet fortinet fortiweb. EPSS estimates a 0.91% chance of exploitation in the next 30 days, higher than 59.4% of scored vulnerabilities.

Overall risk
25/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.1/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.91%
0%100%
Low · +0.03 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 08-12-2021
    PublishedVulnerability first disclosed.
  2. 25-10-2024
    Last modifiedVulnerability information updated.

Description

A improper neutralization of input during web page generation ('cross-site scripting') in Fortinet FortiWeb version 6.4.1 and 6.4.0, version 6.3.15 and below, version 6.2.6 and below allows attacker to execute unauthorized code or commands via crafted HTTP GET requests to the login webpage.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

0.91%

Chance of exploitation in the next 30 days

Percentile

59%

Versus all other CVEs

30-day change

+0.03 pp

From 0.89% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.91%

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

Fortinet2 products
  • fortinet fortiwebFortiWeb 6.4.1, 6.4.0, 6.3.15, 6.3.14, 6.3.13, 6.3.12, 6.3.11, 6.3.10, 6.3.9, 6.3.8, 6.3.7, 6.3.6, 6.3.5, 6.3.4, 6.3.3, 6.3.2, 6.3.1, 6.3.0, 6.2.6, 6.2.5, 6.2.4, 6.2.3, 6.2.2, 6.2.1, 6.2.0
  • fortiweb≥ 6.2.0, ≤ 6.2.6 | ≥ 6.3.0, ≤ 6.3.15 | 6.4.0 | 6.4.1

1 vendor · 2 products

References

1 links