A Cross-site Scripting vulnerability in Fortinet FortiOS 5.6.0 to 5.6.2, 5.4.0 to 5.4.7, 5.2 and earlier, allows attacker to inject arbitrary web script or HTML via maliciously crafted "Host" header in user HTTP requests
Published Jan 29, 2018
6.1
MEDIUMCVSS 3.0
EPSS 1.05%
Description
A Cross-site Scripting vulnerability in Fortinet FortiOS 5.6.0 to 5.6.2, 5.4.0 to 5.4.7, 5.2 and earlier, allows attacker to inject arbitrary web script or HTML via maliciously crafted "Host" header in user HTTP requests.
Affected products
-
- Version 5.2 and all earlier versions.StatusaffectedConstraints-
- Version 5.4.0 to 5.4.7StatusaffectedConstraints-
- Version 5.6.0 to 5.6.2StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fortinet, Inc. | FortiOS | n/a |
|
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
AV:N/AC:M/Au:N/C:N/I:P/A:N
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed Oct 23, 2024 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.05% (0.01055) | 63.15th | v5 (v2026.06.15) |
| Sep 20, 2026 | 1.05% (0.01055) | 62.92th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.16% (0.00163) | 53.37th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.16% (0.00163) | 52.34th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.26% (0.00262) | 62.07th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00954) | 36.37th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00954) | 16.28th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.88% (0.00884) | 25.39th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.88% (0.00884) | 0.00th | v1 |
References (3)
- http://www.securityfocus.com/bid/102779 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1040284 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://fortiguard.com/advisory/FG-IR-17-262 x_refsource_CONFIRMMitigationVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/102779 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1040284 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| https://fortiguard.com/advisory/FG-IR-17-262 | x_refsource_CONFIRMMitigationVendor Advisory |
Change history (0)
No recorded changes yet.