SB2026111257 - Improper Authorization in File Resumable Upload module for Drupal
Published: November 12, 2026
Security Bulletin ID
SB2026111257
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper Authorization (CVE-ID: CVE-2026-126747)
CWE-ID: CWE-285 - Improper Authorization
CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to bypass authorization checks.
The vulnerability exists due to the affected module does not does not sufficiently check access to resumable upload forms. A remote attacker can start uploads against forms they are not permitted to use and store partial upload data on the server.
Remediation
Install update from vendor's website.