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CVE-2022-40676A improper neutralization of input during web page generation ('cross-site scripting') in Fortinet FortiNAC versions 9.4.0, 9.2.0 through…

Description

A improper neutralization of input during web page generation ('cross-site scripting') in Fortinet FortiNAC versions 9.4.0, 9.2.0 through 9.2.5, 9.1.0 through 9.1.8, 8.8.0 through 8.8.11, 8.7.0 through 8.7.6, 8.6.0 through 8.6.5, 8.5.0 through 8.5.4, 8.3.7 allows attacker to execute unauthorized code or commands via specially crafted http requests.

Timeline

  1. ID reserved

    By fortinet

  2. · 6 months later

    Published

  3. · 20 months later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2022-40676, by who scored it
Scored byCVSSScoreVector
fortinetCNA (assigner)3.1High7.1CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:U/RC:C
NVDNVD · Modified3.1Medium5.4CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS (exploitation in 30 days)
0.51% · top 56% of all CVEs (12 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: total
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.1.

Affected products

  • Fortinet · FortiNAC

    • affected 9.4.0
    • affected 9.2.0 – ≤ 9.2.5
    • affected 9.1.0 – ≤ 9.1.8
    • affected 8.8.0 – ≤ 8.8.11
    • affected 8.7.0 – ≤ 8.7.6
    • affected 8.6.0 – ≤ 8.6.5
    • affected 8.5.0 – ≤ 8.5.4
    • affected 8.3.7

What to do

Solution: Please upgrade to FortiNAC version 9.4.1 or above Please upgrade to FortiNAC version 9.2.6 or above Please upgrade to FortiNAC version 9.1.9 or above Please upgrade to FortiNAC version 7.2.0 or above

References

References1

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .