CVE-2026-39812

mediumpriority · track · 0EPSS 0.002 · 9 %ileDEEUNLRUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.19% (9th) EPSS

CVSS 4.8 · medium

Is it mine?

28 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

A improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Fortinet FortiSandbox 5.0.0 through 5.0.5, FortiSandbox 4.4.0 through 4.4.8, FortiSandbox 4.2 all versions, FortiSandbox PaaS 5.0.0 through 5.0.5, FortiSandbox PaaS 4.4.0 through 4.4.8, FortiSandbox PaaS 4.2 all versions may allow attacker to execute unauthorized code or commands via <insert attack vector here>

cvss

Technical severity, 0–10. One row per scoring source.

4.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.14.8mediumAV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:Nsecondary · FSTEC (BDU) RU

v3.14.3mediumCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N/E:P/RL:O/RC:Csecondary · ENISA EU

v3.14.8mediumCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:Nsecondary · psirt@fortinet.comexploitability 1.7 · impact 2.7

v3.14.4mediumCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)

v3.14.8mediumCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:Nsecondary · NCSC-NL NL

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-79USCWE-79USCWE-79US

affected products (28)

Products and version ranges known to be affected.

Fortinet FortiSandbox <4.4.9all versionscert_bundDE
Fortinet FortiSandbox <5.0.5all versionscert_bundDE
Fortinet FortiSandbox <5.0.6all versionscert_bundDE
Fortinet FortiSandbox< 4.4.9cert_bundDE
Fortinet FortiSandbox< 5.0.5cert_bundDE
Fortinet FortiSandbox< 5.0.6cert_bundDE
Fortinet FortiSandbox≤ 5.0.0 ≤5.0.4enisa_euvdEU
Fortinet FortiSandbox≤ 4.4.0 ≤4.4.8enisa_euvdEU
Fortinet FortiSandbox≤ 4.2.1 ≤4.2.8enisa_euvdEU
Fortinet FortiSandbox PaaS≤ 4.4.0 ≤4.4.8enisa_euvdEU
Fortinet FortiSandbox PaaS≤ 5.0.0 ≤5.0.5enisa_euvdEU
Fortinet FortiSandbox PaaS≤ 4.2.1 ≤4.2.8enisa_euvdEU
Fortinet Inc. FortiSandbox≤ 4.2fstec_bduRU
Fortinet Inc. FortiSandbox4.4.0 → 4.4.9fstec_bduRU
Fortinet Inc. FortiSandbox5.0.0 → 5.0.6fstec_bduRU
Fortinet Inc. FortiSandbox PaaS≤ 4.2fstec_bduRU
Fortinet Inc. FortiSandbox PaaS4.4.0 → 4.4.9fstec_bduRU
Fortinet Inc. FortiSandbox PaaS5.0.0 → 5.0.6fstec_bduRU
Fortinet FortiSandbox≤ vers:unknown/*ncsc_nlNL
Fortinet FortiSandbox Cloud≤ vers:unknown/*ncsc_nlNL

showing 20 of 28

advisories (2)

Vendor and ecosystem advisories describing this.

NCSC-2026-0121Kwetsbaarheden verholpen in Fortinet FortiSandboxNL2026-04-15csaf · ncsc_nlNL
Fortinet heeft meerdere kwetsbaarheden verholpen in FortiSandbox, waaronder in on-premises versies en FortiSandbox Cloud, waarvan twee door Fortinet als kritiek zijn beoordeeld.
WID-SEC-W-2026-1094Fortinet FortiSandbox: Mehrere SchwachstellenDeutsch2026-04-14csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Fortinet FortiSandbox ausnutzen, um einen Cross-Site Scripting Angriff durchzuführen, Informationen offenzulegen, Sicherheitsmaßnahmen zu umgehen und Code zur Ausführung zu bringen.

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund ncsc_nl NVD CVE.org MITRE

published 2026-04-14modified 2026-10-26

references (3)

External citations — patches, advisories, analysis.

scry

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