CVE-2026-111658: SiteServer SSCMS through 7.4.0 Cross-Site Authorization Bypass via Channels API
SiteServer · SSCMS
Vendor fix available · Affected: SiteServer SSCMS · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 25% of scored CVEs
DescriptionCVE.org
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.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- SiteServer · SSCMSup to and including 7.4.0
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Weakness
- Insecure Direct Object Reference
- Vendor
- SiteServer
- Published
- October 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-111658 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.