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CVE Record

CVE-2021-43932: Elcomplus SmartPtt Cross-site Scripting

Elcomplus SmartPTT is vulnerable when an attacker injects JavaScript code into a specific parameter that can executed upon accessing the dashboard or the main page.

CriticalCVSS 9Not KEV-listedUpdated
Glexia's TakeAutomated analysiscritical

Security readout for executives and security teams

Plain-English summary

Elcomplus SmartPTT 1.1 has a critical cross-site scripting issue. An attacker with some access could place JavaScript in a parameter that runs when a user opens the dashboard or main page. In a control or dispatch environment, this could threaten confidentiality, integrity, and availability if trusted users are affected.

Executive priority

Treat as high business priority where SmartPTT supports operational communications or dispatch workflows. The score is critical, but urgency should be driven by confirmed version 1.1 exposure, who can reach the interface, and whether vendor remediation is available.

Technical view

CVE-2021-43932 is CWE-79 in Elcomplus SmartPTT 1.1. The CVSS 3.1 vector is AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H, scoring 9.0. The source states JavaScript can be injected into a specific parameter and execute on dashboard or main page access; persistence and exact parameter details are not provided.

Likely exposure

Exposure appears limited to environments running Elcomplus SmartPTT 1.1, especially where the dashboard or main page is reachable by users beyond tightly trusted administrators. No other affected versions are identified in the provided sources.

Exploitation context

The CVSS vector indicates network reachability, low privileges, and required user interaction. The provided data does not show CISA KEV listing or active exploitation evidence. The source bundle does not provide exploit maturity, public proof-of-concept status, or attack volume.

Researcher notes

The public bundle is thin: it names XSS, affected SmartPTT 1.1, CVSS, CWE-79, and CISA advisory reference. It does not identify the parameter, patch version, exploit status, or whether the issue is stored or reflected.

Mitigation direction

  • Identify any Elcomplus SmartPTT 1.1 deployments and ownership.
  • Check Elcomplus and CISA guidance for supported fixes or mitigations.
  • Restrict SmartPTT dashboard access to trusted administrative networks and users.
  • Review logs for unexpected script-like input or dashboard access anomalies.

Validation and detection

  • Confirm deployed SmartPTT version against the affected 1.1 entry.
  • Verify dashboard and main page access is not broadly exposed.
  • Review application inputs for stored or reflected script-like values.
  • Track whether vendor guidance names a fixed release or configuration workaround.
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

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

cwe · medium confidence lookup

CWE-79: User-session and phishing behavior lookup

Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. 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.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2021-43932 mapping review

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

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Critical
CVSS
9 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

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
9CVSS 3.1CriticalCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H2.36Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

9Critical
CVSS 3.1 vector shape for CVE-2021-43932Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

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
ElcomplusSmartPTT1.1Listed
Weakness

CWE details

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

CWE-79 · source CWE mapping

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.