Description
FUDForum 2.6.15 with "Tree View" enabled, as used in other products such as phpgroupware and egroupware, allows remote attackers to read private posts via a modified mid parameter.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗Advisories 2
- DSA-899-1 egroupware - programming errors Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-798-1 phpgroupware - several Debian Security (DSA / DLA) · Mar 9, 2026