How severe is CVE-2023-36633?

CVE-2023-36633 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 no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2023-36633 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-36633?

CVE-2023-36633 affects Fortinet Fortimail. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-36633?

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

When was CVE-2023-36633 published?

CVE-2023-36633 was published on 2023-11-14 and last updated on 2026-06-17.

CVE-2023-36633

CVE-2023-36633 is a medium-severity vulnerability in Fortinet Fortimail 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-732.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-732
Affected product: Fortinet Fortimail
Published: 2023-11-14
Last modified: 2026-06-17

Description

An improper authorization vulnerability [CWE-285] in FortiMail webmail version 7.2.0 through 7.2.2 and before 7.0.5 allows an authenticated attacker to see and modify the title of address book folders of other users via crafted HTTP or HTTPs requests.

Frequently asked questions

What is CVE-2023-36633?: An improper authorization vulnerability [CWE-285] in FortiMail webmail version 7.2.0 through 7.2.2 and before 7.0.5 allows an authenticated attacker to see and modify the title of address book folders of other users via crafted HTTP or HTTPs requests.
How severe is CVE-2023-36633?: CVE-2023-36633 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 no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2023-36633 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-36633?: CVE-2023-36633 affects Fortinet Fortimail. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-36633?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-36633 published?: CVE-2023-36633 was published on 2023-11-14 and last updated on 2026-06-17.

References

https://fortiguard.com/psirt/FG-IR-23-203

Affected products (1)

cpe:2.3:a:fortinet:fortimail:*:*:*:*:*:*:*:*

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