CVE-2026-3321

Authorization Bypass in ON24 Q&A chat

State
Published
Severity
8.7 High
Published
Mar 30, 2026
Updated
Mar 30, 2026
Reserved
Feb 27, 2026

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Description

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 publicly exposed data may include IDs, private URLs, private messages, internal references, or other sensitive information that should only be exposed to authenticated users. In addition, the leaked content could be exploited to facilitate other malicious activities, such as reconnaissance for lateral movement, exploitation of related systems, or unauthorised access to internal applications referenced in the content of chat messages.

Scores

CVSSScoreVectorSource
4.08.7 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA:NINCIBE

Weaknesses

  • CWE-639 Authorization bypass through User-Controlled key

Affected Products

ProductVersions
ON24 Q&A chatON24
  • all versionsAffected

References

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