Upgrade TYPO3 File Manager to 3.1.3 to fix CVE-2026-112238 SQLi and prevent sensitive data leaks

The TYPO3 File Manager extension contains a high-severity vulnerability that allows attackers to extract database information through crafted search queries. According to the NVD record for CVE-2026-112238, the issue exists in all versions of the extension before 3.1.3. The flaw enables an attacker to bypass intended string boundaries and alter the structure of the SQL query executed by the application.

The risk

The vulnerability is classified as CWE-89, which denotes SQL injection. The NVD assigns a CVSS score of 8.7, rating the severity as high. The core problem lies in how the extension constructs database conditions for file searches. It wraps the user-supplied search term in quotes but fails to escape quote characters within that term. Only wildcard characters associated with the LIKE operator are properly escaped.

Who is exposed

Any organization running the TYPO3 File Manager extension in a version older than 3.1.3 is exposed to this risk. The issue affects every field that can be searched within the extension. Because the flaw allows an attacker to leave the intended string value, they can change the database query logic. This capability permits the reading of data directly from the database.

Cost and compliance

The source material does not specify any financial costs, regulatory penalties, or compliance implications associated with this vulnerability. No information regarding data breach notifications or specific industry standards is provided in the NVD record. Consequently, no conclusions can be drawn about the broader economic or legal impact of this flaw based on the available facts.

Our take on the response

Teams should prioritize upgrading the File Manager extension to version 3.1.3 or later immediately. If an upgrade is not feasible, restrict access to the extension to trusted administrative users only. Monitor database logs for unusual query patterns that suggest injection attempts. This reduces the window of opportunity for attackers to exploit the unescaped input.

What defenders should look for

Teams usually detect this type of activity by reviewing web server access logs for search requests containing single or double quotes. Database audit logs are critical for identifying queries that deviate from standard patterns, such as unexpected UNION statements or altered WHERE clauses. Check whether any search results returned data outside the expected scope. Contain the risk by isolating affected web servers and restricting network access to the database while patches are applied.

What to do and how to stay safe: TYPO3

• Verify the version of the TYPO3 File Manager extension installed on all systems.
• Upgrade to version 3.1.3 or higher as soon as the vendor provides the update.
• Monitor web application firewall logs for requests containing unescaped quote characters.
• Restrict access to file management interfaces to authorized personnel only.

Step-by-step guide: Unpatched Software Response: Containment, Recovery, and Prevention Steps

General security guidance from the BlueTeam Herald newsroom. It is not confirmed advice from the organisations named in this story.

Frequently asked questions

What is the CVSS score for CVE-2026-112238?

The NVD rates the vulnerability with a CVSS score of 8.7, which is considered high severity.

Which versions of the TYPO3 File Manager are affected?

All versions of the extension prior to 3.1.3 are affected by this SQL injection flaw.

How does the vulnerability work technically?

The extension fails to escape quote characters in search terms, allowing attackers to alter database queries.