SiteServer SSCMS through 7.4.0 Cross-Site Authorization Bypass via Channels API
Exact source revision recorded 23 Oct 2026 16:48:20 UTC. It does not establish the source's current position. Latest evidence.
cve-program · CVE-2026-111658
PublishedSiteServer 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.
- Source published
- 16 Oct 2026 17:39:23 UTC
- Source modified
- 23 Oct 2026 15:58:20 UTC
- Observed here
- 23 Oct 2026 16:48:20 UTC
- Source terms
- CVE Program Terms of Use
Original source record · Cite this exact observation · Complete original publisher JSON
This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: cve-program · CVE Program Terms of Use. Source text is retained; field grouping and change labels are provided by ChangeIntel.
CVSS 4.0 · 5.1 CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
CVSS 3.1 · 3.8 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N