How severe is CVE-2020-12815?

CVE-2020-12815 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-2020-12815 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-12815?

CVE-2020-12815 primarily affects Fortinet Fortianalyzer. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-12815?

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

When was CVE-2020-12815 published?

CVE-2020-12815 was published on 2020-09-24 and last updated on 2026-06-17.

CVE-2020-12815

CVE-2020-12815 is a medium-severity vulnerability in Fortinet Fortianalyzer 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% (54th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Fortinet Fortianalyzer
Published: 2020-09-24
Last modified: 2026-06-17

Description

An improper neutralization of input vulnerability in FortiTester before 3.9.0 may allow a remote authenticated attacker to inject script related HTML tags via IPv4/IPv6 address fields.

Frequently asked questions

What is CVE-2020-12815?: An improper neutralization of input vulnerability in FortiTester before 3.9.0 may allow a remote authenticated attacker to inject script related HTML tags via IPv4/IPv6 address fields.
How severe is CVE-2020-12815?: CVE-2020-12815 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-2020-12815 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-12815?: CVE-2020-12815 primarily affects Fortinet Fortianalyzer. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-12815?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-12815 published?: CVE-2020-12815 was published on 2020-09-24 and last updated on 2026-06-17.

References

https://fortiguard.com/advisory/FG-IR-20-054

Affected products (3)

cpe:2.3:a:fortinet:fortianalyzer:*:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortitester:*:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortitester:3.8.0:*:*:*:*:*:*:*

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