Cyber Resilience

CVE-2023-39217

XSS in Zoom Meeting Software Development Kit ≤ 5.14.10

XSS
Published
08 August 2023
Modified
21 November 2024
Patch / advisory
View advisory
CVSS Score v3.1 5.3
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
EPSS Score 0.016 74th percentile
Risk Priority 47 floored blend · peak EPSS

Summary

CVE-2023-39217 is a medium-severity Basic XSS (CWE-80) vulnerability in Zoom Meeting Software Development Kit. Its CVSS base score is 5.3 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Content Injection (T1659); ranked in the top 26% 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 SDK’s before 5.14.10 may allow an unauthenticated user to enable a denial of service via network access.

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

Related Threats

MITRE ATT&CK Enterprise Techniques

T1659 Content Injection Initial Access
Adversaries may gain access and continuously communicate with victims by injecting malicious content into systems through online network traffic.
attack.mitre.org →
T1539 Steal Web Session Cookie Credential Access
An adversary may steal web application or service session cookies and use them to gain access to web applications or Internet services as an authenticated user without needing credentials.
attack.mitre.org →
T1189 Drive-by Compromise Initial Access
Adversaries may gain access to a system through a user visiting a website over the normal course of browsing.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2023-36533Same product: Zoom Meeting Software Development Kit
CVE-2023-39216Same vendor: Zoom
CVE-2023-43585Same product: Zoom Meeting Software Development Kit
CVE-2025-0147Same product: Zoom Meeting Software Development Kit
CVE-2025-0143Same product: Zoom Meeting Software Development Kit
CVE-2023-43583Same product: Zoom Meeting Software Development Kit
CVE-2023-43586Same product: Zoom Meeting Software Development Kit
CVE-2024-45417Same product: Zoom Meeting Software Development Kit
CVE-2023-39210Same product: Zoom Meeting Software Development Kit
CVE-2023-49646Same product: Zoom Meeting Software Development Kit

Affected Assets

zoom
meeting software development kit
≤ 5.14.10 · ≤ 5.14.10 · ≤ 5.14.10
zoom
video software development kit
≤ 5.14.10 · ≤ 5.14.10 · ≤ 5.14.10

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
finds

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