| Package | Affected versions | Patched versions |
|---|---|---|
| collaboration | = 5.2≤ 5.21 | |
| enterprise collaboration | = 5.2≤ 5.21 |
Hummingbird Collaboration (aka Hummingbird Enterprise Collaboration) 5.21 and earlier allows remote attackers to obtain sensitive information (intranet IP addresses and enumerations of valid parameter values) via a direct request to hc, which reveals the information in an error message or a cookie.
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