sergejey MajorDoMo /objects/?module=market admin $_REQUEST authorization

Summaryinfo

A vulnerability described as problematic has been identified in sergejey MajorDoMo. Affected is the function admin of the file /objects/?module=market. Executing a manipulation of the argument $_REQUEST can lead to authorization. This vulnerability appears as CVE-2026-27181. The attack may be performed from remote. There is no available exploit. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability classified as problematic was found in sergejey MajorDoMo (unknown version). This vulnerability affects the function admin of the file /objects/?module=market. The manipulation of the argument $_REQUEST with an unknown input leads to a authorization vulnerability. The CWE definition for the vulnerability is CWE-862. The product does not perform an authorization check when an actor attempts to access a resource or perform an action. As an impact it is known to affect availability. CVE summarizes:

MajorDoMo (aka Major Domestic Module) allows unauthenticated arbitrary module uninstallation through the market module. The market module's admin() method reads gr('mode') from $_REQUEST and assigns it to $this->mode at the start of execution, making all mode-gated code paths reachable without authentication via the /objects/?module=market endpoint. The uninstall mode handler calls uninstallPlugin(), which deletes module records from the database, executes the module's uninstall() method via eval(), recursively deletes the module's directory and template files using removeTree(), and removes associated cycle scripts. An attacker can iterate through module names and wipe the entire MajorDoMo installation with a series of unauthenticated GET requests.

The weakness was presented by Valentin Lobstein. The advisory is shared for download at chocapikk.com. This vulnerability was named CVE-2026-27181 since 02/18/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

• sergejey

Name

• MajorDoMo

Website

• Product: https://github.com/sergejey/majordomo/

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