CVE-2019-17653Network attack vector

Unauthorized actions via forged authenticated requests

Published Mar 12, 2020 · Updated Oct 25, 2024

Cross-site request forgery in Fortinet FortiSIEM 5.2.5 and earlier allows remote attackers to act through an authenticated user's session. Fortinet has not published the affected UI endpoint or the missing request-validation operation that accepts the forged request. Exploitation requires an authenticated user to follow a malicious link, after which the request can perform arbitrary actions with that user's session authority.

CVSS severity8.8
High
EPSS probability0.56%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site request forgery in Fortinet FortiSIEM 5.2.5 and earlier allows remote attackers to act through an authenticated user's session. Fortinet has not published the affected UI endpoint or the missing request-validation operation that accepts the forged request. Exploitation requires an authenticated user to follow a malicious link, after which the request can perform arbitrary actions with that user's session authority.

The record

CVE
CVE-2019-17653
Published
Mar 12, 2020
Updated
Oct 25, 2024
Vendor
Fortinet
Product
FortiSIEM
Classifications
CWE-352, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 12, 2020CVE publishedPublication date reported by the CVE source.
  2. Oct 25, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.2.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Fortinet · FortiSIEMversion=5.2.5

Published CVSS scores

6.8NIST NVDAV:N/AC:M/Au:N/C:P/I:P/A:P
8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)
T1204.001Malicious Link

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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