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CVE Record

CVE-2021-43062: A improper neutralization of input during web page generation ('cross-site scripting') in Fortinet FortiMai...

A improper neutralization of input during web page generation ('cross-site scripting') in Fortinet FortiMail version 7.0.1 and 7.0.0, version 6.4.5 and below, version 6.3.7 and below, version 6.0.11 and below allows attacker to execute unauthorized code or commands via crafted HTTP GET requests to the FortiGuard URI protection service.

MediumCVSS 6.1Not KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

This is a cross-site scripting issue in Fortinet FortiMail. A crafted web request could cause unauthorized code execution in a user's browser through FortiGuard URI protection. It requires user interaction, so it is not a simple remote takeover, but it can support credential theft or session-impacting attacks against users who interact with affected content. Organizations running affected FortiMail versions are the relevant exposure group. The source bundle identifies FortiGuard URI protection service handling as the attack surface. Internet-reachable mail security portals or administrator/user workflows that render crafted GET request output may increase practical exposure. Treat this as a moderate-priority remediation item. It is not listed as KEV and requires user interaction, but FortiMail is security infrastructure, so exposed or administrator-facing systems should be upgraded promptly during the next controlled maintenance window. Mitigation focus: Identify all FortiMail appliances and record exact firmware versions.; Consult Fortinet FG-IR-21-185 for the vendor-supported fixed release or workaround.; Upgrade affected FortiMail systems according to Fortinet guidance..

Prepared

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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CVE-2021-43062 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
6.1 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:P/RL:X/RC:C

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
6.1CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:P/RL:X/RC:C2.82.7Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

6.1Medium
CVSS 3.1 vector shape for CVE-2021-43062Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:P/RL:X/RC:C

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
FortinetFortinet FortiMailFortiMail 7.0.1, 7.0.0, 6.4.5, 6.4.4, 6.4.3, 6.4.2, 6.4.1, 6.4.0, 6.2.7, 6.2.6, 6.2.5, 6.2.4, 6.2.3, 6.2.2, 6.2.1, 6.2.0, 6.0.11, 6.0.10, 6.0.9, 6.0.8, 6.0.7, 6.0.6, 6.0.5, 6.0.4, 6.0.3, 6.0.2, 6.0.1, 6.0.0Listed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.