WordPress security changelog
HIGH CVE-2023-6620 Modified

POST SMTP Mailer: SQL injection

POST SMTP Mailer is affected by SQL injection. Exposure depends on how the affected operation is made reachable by the site. A successful request can alter database queries and expose or modify WordPress data.

CVE / CNA score 7.2 CVSS 3.1 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
NVD score 7.2 CVSS 3.1 · nvd@nist.gov
Component
POST SMTP Mailer
Plugin slug
post-smtp
Affected
See vendor advisory
Safe version
See mitigation notes
Published
Jan 15, 2024
Weakness
CWE-89 — Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

This CVE was published Jan 15, 2024 and is one of 27 known issues for this plugin.

Update, patch or deactivate.

Update POST SMTP Mailer to a release outside the affected range, or disable and remove it until a fixed version is available.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Technical description

The POST SMTP Mailer WordPress plugin before 2.8.7 does not properly sanitise and escape several parameters before using them in SQL statements, leading to a SQL injection exploitable by high privilege users such as admin.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

NVD vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Primary and upstream sources