CVE-2026-23573

MEDIUM 6.1

Published 2026-07-14 · Last modified 2026-08-11

An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability [CWE-79] vulnerability in Fortinet FortiOS 7.6.0 through 7.6.6, FortiOS 7.4 all versions, FortiOS 7.2 all versions, FortiPAM 1.8.0, FortiPAM 1.7 all versions, FortiPAM 1.6 all versions, FortiPAM 1.5 all versions, FortiPAM 1.4 all versions, FortiPAM 1.3 all versions, FortiPAM 1.2 all versions, FortiPAM 1.1 all versions, FortiPAM 1.0 all versions, FortiProxy 7.4.0 through 7.4.3, FortiProxy 7.2.0 through 7.2.9 may allow an authenticated remote user to execute code or commands via crafted requests.

NO EXPLOITATION SIGNALS

No known exploitation, public exploit, or elevated probability at this time. Track for changes.

Exploitation likelihood

0.3%chance of exploitation in 30 days · 24th percentile

○ In CISA KEV ○ Public exploit / PoC

Impact if exploited

6.1CVSS 3.1 · MEDIUM

ConfidentialityLow
IntegrityLow
AvailabilityNone

What an attacker needs

✓Access: Reachable over the network — no local access needed
✓Privileges: No account or privileges required
⚠User interaction: A user must take an action (click / open a file)
✓Complexity: No special conditions — reliably repeatable

✓ lowers the bar for an attacker · ⚠ raises it

Proof of concept & exploit code

github-search Search GitHub for public PoC repos

Test against your own equipment

curl -s https://vulnpedia.com/cve/CVE-2026-23573/poc.jsonMachine-readable PoC index for this CVE (for automation).

Listed for defensive triage, patch verification, and authorized testing on systems you own. Machine-readable: /cve/CVE-2026-23573/poc.json

Affected

Vendors Fortinet Siemens

Products Fortios Fortiproxy Fortipam Ruggedcom Ape1808

Weakness (CWE)

CWE-79: Execute unauthorized code or commands

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:P/RL:O/RC:C

Known Affected Software Configurations

Vendor	Product	Version range
Fortinet	Fortiproxy	≥ 7.2.0 and < 7.2.10
Fortinet	Fortiproxy	≥ 7.4.0 and < 7.4.4
Fortinet	Fortios	≥ 7.2.0 and < 7.6.7
Fortinet	Fortipam	≥ 1.0.0 and < 1.8.1

All CVSS metrics

MEDIUM 6.1 v3.1 · CNA Primary
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:P/RL:O/RC:C
MEDIUM 6.1 v3.1 · NVD Secondary
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References

Advisories

https://fortiguard.fortinet.com/psirt/FG-IR-26-150 Vendor Advisory

Technical & other

https://cert-portal.siemens.com/productcert/html/ssa-127084.html

Sources: NVD · CVE.org · EPSS