CVE-2026-111658

LowCVSS 3.8/10Last modified Oct 23, 2026

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.

Metrics

CVSS 3.1 3.8/10CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N

Weakness enumeration

CWE-639

Affected software

No affected versions have been published.

Timeline

Published: Oct 16, 2026
Last modified: Oct 23, 2026
NVD status: Deferred

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