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CVE Record

CVE-2020-26081: Cisco IoT Field Network Director Cross-Site Scripting Vulnerabilities

Multiple vulnerabilities in the web UI of Cisco IoT Field Network Director (FND) could allow an unauthenticated, remote attacker to conduct cross-site scripting (XSS) attacks against users on an affected system. The vulnerabilities are due to insufficient validation of user-supplied input that is processed by the web UI. An attacker could exploit these vulnerabilities by persuading a user to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the interface or access sensitive, browser-based information on an affected system.

MediumCVSS 6.1Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2020-26081 is a set of cross-site scripting flaws in Cisco IoT Field Network Director’s web interface. An attacker would need to trick a user into opening a crafted link. Successful abuse could run script in the interface context and expose browser-based sensitive information.

Executive priority

Treat this as a moderate-priority management-interface issue. It is not listed as known exploited, but affected IoT-FND deployments should be checked because successful XSS can compromise user sessions or sensitive browser data.

Technical view

Cisco reports multiple web UI XSS vulnerabilities caused by insufficient validation of user-supplied input. The CVSS 3.0 score is 6.1: network reachable, low complexity, no privileges required, user interaction required, changed scope, low confidentiality and integrity impact, and no availability impact.

Likely exposure

Exposure is limited to organizations running Cisco IoT Field Network Director. The provided sources do not identify specific affected versions, so teams should verify installed IoT-FND releases against Cisco’s advisory.

Exploitation context

The provided bundle does not show active exploitation, and CISA KEV status is false. Exploitation requires social engineering a user to click a crafted link; this lowers urgency compared with unauthenticated server-side compromise.

Researcher notes

The source bundle names Cisco IoT-FND and CWE-74 but does not provide version ranges, fixed versions, or proof-of-concept details. Avoid assuming exploit availability or remediation specifics beyond Cisco’s advisory.

Mitigation direction

  • Review Cisco’s advisory for affected releases and vendor remediation guidance.
  • Identify and prioritize internet-exposed or broadly reachable IoT-FND web interfaces.
  • Limit IoT-FND web UI access to trusted administrative networks where feasible.
  • Educate IoT-FND users to avoid unsolicited links targeting the management interface.

Validation and detection

  • Inventory Cisco IoT-FND deployments and their installed versions.
  • Compare installed versions with Cisco’s advisory before declaring exposure resolved.
  • Confirm web UI access is restricted to expected administrative users and networks.
  • Review security monitoring for suspicious links or browser activity involving IoT-FND users.
Prepared
Confidence
high
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

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-74: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

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cve · low confidence lookup

CVE-2020-26081 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
6.1 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

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 3.0MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N2.82.7Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

6.1Medium
CVSS 3.0 vector shape for CVE-2020-26081Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

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
CiscoCisco IoT Field Network Director (IoT-FND)n/aListed
Weakness

CWE details

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

CWE-74 · source CWE mapping

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.