Cyber Resilience

CVE-2023-39216

XSS in Zoom ≤ 5.14.7

XSS
Published
08 August 2023
Modified
21 November 2024
Patch / advisory
View advisory
CVSS Score v3.1 9.6
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
EPSS Score 0.011 61th percentile
Risk Priority 70 floored blend · peak EPSS

Summary

CVE-2023-39216 is a critical-severity Basic XSS (CWE-80) vulnerability in Zoom Zoom. Its CVSS base score is 9.6 (Critical).

Operationally, ranked in the top 39% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

OWASP Top 10 for Web (2025)

A05:2025 Injection

EU & UK References

Vulnerability Data

Improper input validation in Zoom Desktop Client for Windows before 5.14.7 may allow an unauthenticated user to enable an escalation of privilege via network access.

CWE(s)
CWE-80NVD-CWE-noinfo

Related Threats

CVEs Like This One

CVE-2023-36540Same product: Zoom Zoom
CVE-2023-28601Same product: Zoom Zoom
CVE-2025-49462Same product: Zoom Zoom
CVE-2023-36534Same product: Zoom Zoom
CVE-2023-22881Same product: Zoom Zoom
CVE-2024-27242Same product: Zoom Zoom
CVE-2023-36541Same product: Zoom Zoom
CVE-2023-22882Same product: Zoom Zoom
CVE-2023-28599Same product: Zoom Zoom
CVE-2023-28598Same product: Zoom Zoom

Affected Assets

zoom
zoom
≤ 5.14.7

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V1.2.1
  • V1.3.1
  • V1.3.3
  • V1.3.4

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly require output encoding and input validation that prevent basic XSS.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.29 Security testing in development and acceptance mostly match
detects

Security testing in development catches unneutralized script tags before release.

A.8.25 Secure development life cycle partial match
prevents

Secure SDLC mandates input validation and output encoding that directly prevent basic XSS.

A.8.26 Application security requirements partial match
prevents

Application security requirements explicitly call for neutralization of script-related HTML tags.

A.8.28 Secure coding partial match
prevents

Secure coding standards require proper escaping of <, >, & to block XSS.

A.8.23 Web filtering none match
none

Web filtering can block some reflected XSS payloads at the network edge.

References