CVE-2026-82486CWE-266CWE-284broken-access-control

CVE-2026-82486

Medium · published August 30, 2026

CVSS v3.1
5.0
EPSS
0%
Percentile
24.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.0 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
CVSS v4.0
2.3 · CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X
EPSS
0.00328 · 24.6th percentile
Weaknesses
CWE-266 · Incorrect Privilege Assignment; CWE-284 · Improper Access Control
Published
2026-08-30T14:17Z
References (5)
https://github.com/siteserver/cms/issues/3898 · [email protected]https://vuldb.com/cve/CVE-2026-82486 · [email protected]https://vuldb.com/submit/888366 · [email protected]https://vuldb.com/vuln/397036 · [email protected]https://vuldb.com/vuln/397036/cti · [email protected]
EPSS history
Timeline
  • 01 SEP 03:32Z
    EPSS moved — → 0%
    epss
  • 30 AUG 09:15Z
    SiteServer SSCMS Agent Installation Workflow access control
    cvelistv5