Home/CVE/An incorrect authorization vulnerability [CWE-863] in FortiMail webmail version 7.2.0 through 7.2.2, version 7.0.0 throu
CVE

CVE-2023-36556

An incorrect authorization vulnerability [CWE-863] in FortiMail webmail version 7.2.0 through 7.2.2, version 7.0.0 throu

An incorrect authorization vulnerability [CWE-863] in FortiMail webmail version 7.2.0 through 7.2.2, version 7.0.0 through 7.0.5 and below 6.4.7 allows an authenticated attacker to login on other users accounts from the same web domain via crafted HTTP or HTTPs requests.

HIGH · CVSS 8.8 EPSS 0.0036
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-863Incorrect Authorization
CWE-863Incorrect Authorization
▤

Affected Products & Versions

5
fortinet fortimail>= 6.0.0 and <= 6.0.12
fortinet fortimail>= 6.2.0 and <= 6.2.9
fortinet fortimail>= 6.4.0 and <= 6.4.7
fortinet fortimail>= 7.0.0 and <= 7.0.5
fortinet fortimailall versions
▣

Scoring & Timeline

8.8
HIGH · CVSS v3.1 · psirt@fortinet.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD10 Oct 2023 · 05:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
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References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://fortiguard.com/psirt/FG-IR-23-202Vendor Advisory
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