| Package | Affected versions | Patched versions |
|---|---|---|
| groupsession | < 5.3.0< 5.3.2< 5.3.3 | 5.3.05.3.25.3.3 |
GroupSession Free edition prior to ver5.3.0, GroupSession byCloud prior to ver5.3.3, and GroupSession ZION prior to ver5.3.2. do not validate origins in WebSockets. If a user accesses a crafted page, Chat information sent to the user may be exposed.
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