CVE-2023-23777

Name: CVE-2023-23777
Creator: NVD / NIST
Published: 2023-07-11T09:15:09.46+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.2/10EPSS 1.32%

Last modified Jun 17, 2026

CVE-2023-23777 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. An improper neutralization of special elements used in an OS command ('OS Command Injection') vulnerability [CWE-78] in FortiWeb version 7.0.1 and below, 6.4 all versions, version 6.3.18 and below may allow a privileged attacker to execute arbitrary bash commands via crafted cli backup parameters.. EPSS estimates a 1.32% chance of exploitation in the next 30 days.

Description

An improper neutralization of special elements used in an OS command ('OS Command Injection') vulnerability [CWE-78] in FortiWeb version 7.0.1 and below, 6.4 all versions, version 6.3.18 and below may allow a privileged attacker to execute arbitrary bash commands via crafted cli backup parameters.

Metrics

CVSS 3.1

7.2/10

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

EPSS Probability

1.32%

67.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Fortinet	Fortiweb	>= 6.3.6, <= 6.3.18
Fortinet	Fortiweb	>= 6.4.0, <= 6.4.3
Fortinet	Fortiweb	7.0.0
Fortinet	Fortiweb	7.0.1

References

https://fortiguard.com/psirt/FG-IR-22-131Vendor Advisory
https://fortiguard.com/psirt/FG-IR-22-131Vendor Advisory

Timeline

Published: Jul 11, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-23777?

How severe is CVE-2023-23777?

CVE-2023-23777 has a CVSS score of 7.2/10 (HIGH severity). The EPSS model estimates a 1.32% probability of exploitation in the next 30 days.

How do I fix CVE-2023-23777?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-23777?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST