Video Conferencing with Zoom <= 4.2.1 — Sensitive Information Exposure
CVE-2023-3947Published · Updated Action summary
Affected: ≤4.2.1Update to 4.2.2 or newer
All remediation steps- Severity
- Low3.7
- CVSS
- 3.7CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:NWhat does this vector mean?
AV:NAttack vector- Network
AC:HAttack complexity- High
PR:NPrivileges required- None
UI:NUser interaction- None
S:UScope- Unchanged
C:LConfidentiality- Low
I:NIntegrity- None
A:NAvailability- None
- Required access
- No account needed
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
Video Conferencing with Zoom video-conferencing-with-zoom-api
- Affected≤ 4.2.1
- Patched in4.2.2
Update to 4.2.2 or newer.
You are affected if you run ≤ 4.2.1. Version 4.2.2 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Video Conferencing with Zoom.
- No admin access? Run a passive check of your site. It reads public files only.
- No account is needed to exploit this. Treat any exposed site on an affected version as at risk.
What to do
- Update to version 4.2.2, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Video Conferencing with Zoom to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to István Márton.
The Video Conferencing with Zoom plugin for WordPress is vulnerable to Sensitive Information Exposure due to hardcoded encryption key on the 'vczapi_encrypt_decrypt' function in versions up to, and including, 4.2.1. This makes it possible for unauthenticated attackers to decrypt and view the meeting id and password.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in Video Conferencing with Zoom
All 13| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium4.3 | Authenticated (Subscriber+) Information Exposure ≤4.6.10Update to 4.6.11 | CVE-2026-103335 | |
| Medium6.4 | Authenticated (Contributor+) Stored Cross-Site Scripting ≤4.6.9Update to 4.6.10 | CVE-2026-66641 | |
| Medium5.3 | Missing Authorization to Unauthenticated Zoom SDK Credential Exposure via 'get_auth' AJAX Action ≤4.6.7Update to 4.6.8 | CVE-2026-6964 | |
| Medium5.3 | Missing Authorization <4.6.6Update to 4.6.6 | CVE-2026-1368 | |
| Medium4.3 | Missing Authorization ≤4.6.6Update to 4.6.7 | CVE-2026-39653 |
- Medium4.3Authenticated (Subscriber+) Information Exposure
≤4.6.10Update to 4.6.11
- Medium6.4Authenticated (Contributor+) Stored Cross-Site Scripting
≤4.6.9Update to 4.6.10
- Medium5.3Missing Authorization to Unauthenticated Zoom SDK Credential Exposure via 'get_auth' AJAX Action
≤4.6.7Update to 4.6.8
- Medium5.3Missing Authorization
<4.6.6Update to 4.6.6
- Medium4.3Missing Authorization
≤4.6.6Update to 4.6.7
Timeline
CVE published
Severity low, CVSS 3.7
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- Copyright 1999-2026 The MITRE Corporation. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
- CVSS / CWE
- National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.