Privilege escalation in Simple Banner
CVE-2026-107506
The Simple Banner WordPress plugin before 3.3.3 does not correctly limit the capabilities it grants to the user roles an administrator allows to manage its banners, granting such roles the full administrator capability, which allows users in a low-privileged role to escalate their privileges and fully compromise the site.
Vulnerability class: Privilege Escalation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Simple Banner
Weakness classification (CWE)
References
- wpscan.com/vulnerability/8123f94c-0f46-4123-ae13-c2d5474476b2/ (technical-description, exploit, vdb-entry)
Frequently asked questions
- What is CVE-2026-107506?
- CVE-2026-107506 is a high-severity vulnerability in Simple Banner, classified under Improper Privilege Management. CVSS score: 7.5/10. Published 2026-10-21.
- How severe is CVE-2026-107506?
- High severity. CVSS v3 base score is 7.5 out of 10.