SB2026090310 - Information disclosure in Islandora module for Drupal
Published: September 3, 2026
Security Bulletin ID
SB2026090310
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper access control (CVE-ID: CVE-2026-84916)
CWE-ID: CWE-284 - Improper Access Control
CVSSv4: 6.3 [CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to the affected module does not sufficiently check block access when arbitrary block ID's are submitted to its publicly accessible AJAX endpoint. A remote attacker can retrieve restricted block content.
Remediation
Install update from vendor's website.