How severe is CVE-2019-17651?

CVE-2019-17651 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2019-17651 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-17651?

CVE-2019-17651 affects Fortinet Fortisiem. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-17651?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-17651 published?

CVE-2019-17651 was published on 2020-01-28 and last updated on 2026-06-17.

CVE-2019-17651

CVE-2019-17651 is a medium-severity vulnerability in Fortinet Fortisiem with a CVSS 3.x base score of 5.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
CVSS v2: 3.5
EPSS exploit prediction: 1% (45th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Fortinet Fortisiem
Published: 2020-01-28
Last modified: 2026-06-17

Description

An Improper Neutralization of Input vulnerability in the description and title parameters of a Device Maintenance Schedule in FortiSIEM version 5.2.5 and below may allow a remote authenticated attacker to perform a Stored Cross Site Scripting attack (XSS) by injecting malicious JavaScript code into the description field of a Device Maintenance schedule.

Frequently asked questions

What is CVE-2019-17651?: An Improper Neutralization of Input vulnerability in the description and title parameters of a Device Maintenance Schedule in FortiSIEM version 5.2.5 and below may allow a remote authenticated attacker to perform a Stored Cross Site Scripting attack (XSS) by injecting malicious JavaScript code into the description field of a Device Maintenance schedule.
How severe is CVE-2019-17651?: CVE-2019-17651 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2019-17651 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-17651?: CVE-2019-17651 affects Fortinet Fortisiem. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-17651?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-17651 published?: CVE-2019-17651 was published on 2020-01-28 and last updated on 2026-06-17.

References

https://fortiguard.com/psirt/FG-IR-19-197

Affected products (1)

cpe:2.3:a:fortinet:fortisiem:*:*:*:*:*:*:*:*

More vulnerabilities in Fortinet Fortisiem

CVE-2024-23109 — Critical (CVSS 10.0): An improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet…
CVE-2024-23108 — Critical (CVSS 10.0): An improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet…
CVE-2023-34992 — Critical (CVSS 10.0): A improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet…
CVE-2023-40714 — Critical (CVSS 9.9): A relative path traversal in Fortinet FortiSIEM versions 7.0.0, 6.7.0 through 6.7.2, 6.6.0 through 6.6.3, 6.5.1, 6.5.0…
CVE-2025-64155 — Critical (CVSS 9.8): An improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet…
CVE-2025-25256 — Critical (CVSS 9.8): An improper neutralization of special elements used in an OS command ('OS Command Injection') vulnerability [CWE-78] in…

All CVEs affecting Fortinet Fortisiem →

Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities

CVE-2025-49410 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Imran Emu TC…
CVE-2024-47875 — Critical (CVSS 10.0): DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMpurify was vulnerable to…
CVE-2024-6886 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Gitea…
CVE-2023-45144 — Critical (CVSS 10.0): com.xwiki.identity-oauth:identity-oauth-ui is a package to aid in building identity and service providers based on…
CVE-2023-45138 — Critical (CVSS 10.0): Change Request is an pplication allowing users to request changes on a wiki without publishing the changes directly.…
CVE-2022-4361 — Critical (CVSS 10.0): Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the…

Browse all CWE-79 (Cross-site Scripting (XSS)) vulnerabilities →