CVE-2026-3321 Authorization Bypass in ON24 Q&A chat
Unauthenticated attackers can bypass authorization to enumerate event IDs and access sensitive Q&A history, potentially aiding further attacks.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-3321?
CVE-2026-3321 is a high-severity missing authorization vulnerability in ON24 Q&A chat, published on 30 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-639
Which versions are affected by CVE-2026-3321?
How do I fix CVE-2026-3321?
No fix has been published for CVE-2026-3321 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-3321 being exploited?
There is no known exploitation of CVE-2026-3321 in the wild and no public exploit code.
Sources
Also known as GHSA-pm7w-jqp9-2c3m.