Privilege escalation in Gosmtp
CVE-2026-111577
The GoSMTP WordPress plugin before 1.2.5 does not perform a settings-management authorization check on its SMTP configuration page, which is gated only on the GoSMTP WordPress plugin before 1.2.5-activation capability, allowing users with a delegated role below administrator to change outbound mail delivery and achieve administrator account takeover.
Vulnerability class: Privilege Escalation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.001 (4.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 4th percentile — 4.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
The 30-day trend appears once there are two daily scores.
Affected products
- Gosmtp
Weakness classification (CWE)
References
- wpscan.com/vulnerability/8a20e9fd-9ed8-4984-b34a-2b29b4c8b133/ (technical-description, exploit, vdb-entry)
Frequently asked questions
- What is CVE-2026-111577?
- CVE-2026-111577 is a high-severity vulnerability in Gosmtp, classified under Improper Privilege Management. CVSS score: 7.2/10. Published 2026-10-28.
- How severe is CVE-2026-111577?
- High severity. CVSS v3 base score is 7.2 out of 10.