CVE-2026-111658
MEDIUM
MEDIUM
Priority: 0.02
BB Relevance:
55/100
Published: 2026-10-16
Modified: 2026-10-23
First seen: 2026-10-29
Status: active
Attack Surface
Network
Low Complexity
No Interaction
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
High
UI:
None
S:
X
AT:
None
VC:
Low
VI:
Low
VA:
None
Description
SiteServer SSCMS through 7.4.0 contains an authorization bypass vulnerability in ChannelsController that allows site-scoped administrators to access other sites' channels by supplying foreign channel IDs. Attackers with Channels permission on one site can read and overwrite another site's channel names, file paths, templates, link URLs, and custom fields, breaking multi-site isolation.