Skip to content

Vendor

ON24 vulnerabilities

2 published CVES affecting ON24, from public sources (CVE.org, NVD, CISA KEV, FIRST EPSS, OSV).

Total
2
Critical
1
High
1
Medium
0
Low
0
Unscored
0
CISA KEV
0
Atom feed of ON24 alerts

Products

Latest ON24 CVEs

Newest publication first

  1. CVE-2026-3321 Authorization Bypass in ON24 Q&A chat

    Published
    HighCVSS 8.7 EPSS 0.27%

    A vulnerability of authorization bypass through user-controlled key in the 'console-survey/api/v1/answer/{EVENTID}/{TIMESTAMP}/' endpoint. Exploiting this vulnerability would allow an unauthenticated attacker to enumerate event IDs and obtain the complete Q&A history. This public...

  2. CVE-2021-34823 The ON24 ScreenShare (aka DesktopScreenShare.app) plugin before 2.0 for macOS allows remote file access via its built-in HTTP server. This allows unauthenticated remote users to retrieve files accessi...

    Published
    CriticalCVSS 9.1 EPSS 2.0%

    The ON24 ScreenShare (aka DesktopScreenShare.app) plugin before 2.0 for macOS allows remote file access via its built-in HTTP server. This allows unauthenticated remote users to retrieve files accessible to the logged-on macOS user. When a remote user sends a crafted HTTP request...

Sources: CVE.org, NVD, CISA KEV, FIRST EPSS, OSV and public exploit-reference metadata. Product matching comes from the published CVE records. A proof-of-concept means public code exists; it is not evidence of exploitation.