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CVE Record

CVE-2021-36175: An improper neutralization of input vulnerability [CWE-79] in FortiWebManager versions 6.2.3 and below, 6.0...

An improper neutralization of input vulnerability [CWE-79] in FortiWebManager versions 6.2.3 and below, 6.0.2 and below may allow a remote authenticated attacker to inject malicious script/tags via the name/description/comments parameter of various sections of the device.

MediumCVSS 4.1Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2021-36175 is an authenticated cross-site scripting issue in Fortinet FortiWebManager. A logged-in remote user could place script or tag content into name, description, or comments fields, potentially affecting another user who views it. The reported business impact is limited integrity risk, not direct system takeover.

Executive priority

Handle in normal vulnerability management cadence unless FortiWebManager is broadly accessible or many non-admin users can edit fields. Prioritize faster if management access is exposed beyond a trusted network.

Technical view

The bundle describes CWE-79 improper input neutralization in FortiWebManager 6.2.3 and below and 6.0.2 and below. Attack prerequisites are network access, low privileges, and user interaction. CVSS 3.1 is 4.1 with changed scope, low integrity impact, and no listed confidentiality or availability impact.

Likely exposure

Exposure is limited to organizations running the affected FortiWebManager versions and allowing authenticated users to edit impacted fields. Internet exposure increases risk, but the source bundle does not confirm deployment patterns.

Exploitation context

The bundle does not indicate CISA KEV listing or active exploitation. The CVSS vector includes low attack complexity and required user interaction, meaning abuse depends on an authenticated attacker and a victim viewing affected content.

Researcher notes

The public bundle is sparse. It identifies affected version ranges, parameters, privilege and interaction requirements, and CVSS details, but does not provide exploit details, confirmed active exploitation, or a specific fixed version in the supplied text.

Mitigation direction

  • Check Fortinet advisory FG-IR-20-027 for current vendor remediation guidance.
  • Upgrade affected FortiWebManager deployments according to Fortinet guidance.
  • Restrict FortiWebManager access to trusted administrators and management networks.
  • Review permissions for users who can edit name, description, or comments fields.

Validation and detection

  • Inventory FortiWebManager versions and identify 6.2.3 or below and 6.0.2 or below.
  • Confirm whether untrusted or broad user groups have authenticated access.
  • Review logs or records for suspicious script-like content in editable fields.
  • Verify remediation status against Fortinet advisory FG-IR-20-027.
Prepared
Confidence
medium
Sources
3

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

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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CVE-2021-36175 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
4.1 (3.1)
Known Exploited
No
Published

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

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
4.1CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N/E:F/RL:X/RC:X2.31.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

4.1Medium
CVSS 3.1 vector shape for CVE-2021-36175Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

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 FortiWebManagerFortiWebManager 6.0.2 6.2.3Listed
Weakness

CWE details

No CWE listed

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