An improper neutralization of input during web page Generation ('Cross-site Scripting') vulnerability [CWE-79] in FortiOS version 7.4.3 and…

published 2024-06-11 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-20636

cvss: 6.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.0%; EPSS 1.0% chance of exploitation in 30 days, percentile 64%
public exploits: 0; none known

An improper neutralization of input during web page Generation ('Cross-site Scripting') vulnerability [CWE-79] in FortiOS version 7.4.3 and below, 7.2 all versions, 7.0 all versions and FortiProxy version 7.4.2 and below, 7.2 all versions, 7.0 all versions reboot page may allow a remote privileged attacker with super-admin access to execute JavaScript code via crafted HTTP GET requests.

Patch / fix

fixed in 2

Fortinet FortiOS 6.5.0, 7.0.13, 7.2.7, 7.4.3
Fortinet FortiProxy 2.1.0, 7.0.14, 7.2.8, 7.4.2

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-24-193-02 updated 2026-01-14 cvss 6.8

Siemens RUGGEDCOM APE 1808

Siemens RUGGEDCOM APE1808
affected: fixed in V7.4.4

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 2 y ago (2024-06-13)

Exploit prediction

1.04% chance of exploitation in the next 30 days, higher than 64% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	6.2	CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
CNA	3.1	6.8	CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
NVD	3.1	4.8	CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Affected products

Fortinet FortiOS
Fortinet FortiProxy

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

Technology feeds

Fortinet rss critical rss

References

fortiguard.fortinet.com /psirt/FG-IR-23-471
vendor-advisory

Sources

CVE List CVE-2024-23111
NVD CVE-2024-23111

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary