CVE-2026-78070: CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') in digital-peak.com DP Calendar extension for Joomla

CVE-2026-78070 is a blind SQL injection vulnerability (CWE-89) in the digital-peak.com DP Calendar extension for Joomla. It affects versions 5.5.0 through 10.11.2. The issue arises when an authenticated user with update permissions on articles saves an article, triggering a blind SQL injection via the content plugin. The vulnerability allows improper neutralization of special elements in SQL commands, potentially enabling unauthorized database queries. The CVSS 4.0 base score is 6.9 (medium severity), reflecting network attack vector, low attack complexity, no user interaction, and high impact on confidentiality.

An attacker with authenticated, privileged access and update permissions on Joomla articles can exploit this vulnerability to perform blind SQL injection attacks. This can lead to unauthorized access to sensitive database information, potentially compromising confidentiality. However, the attack requires elevated privileges and no known exploits are reported in the wild at this time.

No official patch or remediation has been confirmed yet. Users should monitor the vendor's advisories for updates. Until a fix is available, restrict update permissions on articles to trusted users only to reduce risk. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.