CVE-2026-2831Network attack vector

Database information disclosure via unprepared logid query

Published Feb 27, 2026 · Updated Feb 27, 2026

SQL injection in Pierre Lannoy MailArchiver 4.5.0 and earlier allows remote authenticated users to read database information. The event-viewing path passes the user-controlled logid value into an existing SQL query without sufficient escaping or parameterized preparation. Administrator-level WordPress access is required, and the documented consequence is database information extraction rather than data modification or service interruption.

CVSS severity4.9
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SQL injection in Pierre Lannoy MailArchiver 4.5.0 and earlier allows remote authenticated users to read database information. The event-viewing path passes the user-controlled logid value into an existing SQL query without sufficient escaping or parameterized preparation. Administrator-level WordPress access is required, and the documented consequence is database information extraction rather than data modification or service interruption.

The record

CVE
CVE-2026-2831
Published
Feb 27, 2026
Updated
Feb 27, 2026
Vendor
Pierre Lannoy
Product
MailArchiver
Classifications
CWE-89, T1190
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Feb 27, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 27, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=* <=4.5.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Pierre Lannoy · MailArchiverversion=* <=4.5.0

Published CVSS scores

4.9WordfenceCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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