CVE-2026-2831
MailArchiver <= 4.5.0 - Authenticated (Admininistrator+) SQL Injection via 'logid' Parameter
CVSS Score
4.9
EPSS Score
0.0%
EPSS Percentile
0th
The MailArchiver plugin for WordPress is vulnerable to SQL Injection via the ‘logid’ parameter in all versions up to, and including, 4.5.0 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with Administrator-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.
| CWE | CWE-89 |
| Vendor | pierrelannoy |
| Product | mailarchiver |
| Published | Feb 27, 2026 |
| Last Updated | Apr 8, 2026 |
Stay Ahead of the Next One
Get instant alerts for pierrelannoy mailarchiver
Be the first to know when new medium vulnerabilities affecting pierrelannoy mailarchiver are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
pierrelannoy / MailArchiver
0 ≤ 4.5.0
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/5bc8da1b-8095-46b5-8268-63bdddb4e629?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/mailarchiver/tags/4.5.0/includes/features/class-eventviewer.php#L79 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/mailarchiver/tags/4.5.0/includes/features/class-events.php#L614
Credits
Ronnachai Chaipha