CVE-2026-82486

SiteServer SSCMS Agent Installation Workflow access control

MEDIUM
5
CVSS Score
Published: August 30, 2026 at 09:15 AM UTC
Updated: August 31, 2026 at 09:06 PM UTC
2 products affected across 2 vendorsSSCMSSiteserver CMS

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Severity
MEDIUM5
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

A vulnerability was found in SiteServer SSCMS 7.4.0. Affected by this issue is some unknown functionality of the component Agent Installation Workflow. Performing a manipulation of the argument SecurityKey results in improper access controls. Remote exploitation of the attack is possible. The attack is considered to have high complexity. The exploitation is known to be difficult. The project was informed of the problem early through an issue report but has not responded yet.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (5)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/vuln/397036
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/397036/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/cve/CVE-2026-82486
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/888366
Issue Tracking
Source: cverecord
https://github.com/siteserver/cms/issues/3898

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5MEDIUMVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-284CWE-266

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