SB2026012017 - Spoofing attack in AWS SDK for PHP extension for TYPO3



SB2026012017 - Spoofing attack in AWS SDK for PHP extension for TYPO3

Published: January 20, 2026

Security Bulletin ID SB2026012017
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Spoofing attack (CVE-ID: CVE-2025-14761)

CWE-ID: CWE-451 - User Interface (UI) Misrepresentation of Critical Information (Clickjacking, spoofing)

CVSSv4: CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to a single ciphertext can be decrypted into 2 different plaintexts by using different encryption keys. A remote user with permission to upload a new instruction file to the S3 bucket to replace the existing instruction file can create a rouge EDK key and force the application to use it in any future attempts to decrypt the underlying encrypted message with the S3EC.


Remediation

Install update from vendor's website.