Joomshaper Easy Store Extension 1.0.0-3.0.0 Checkout Search Guest User Endpoint sql injection

Summaryinfo

A vulnerability identified as critical has been detected in Joomshaper Easy Store Extension 1.0.0-3.0.0. This affects an unknown function of the component Checkout Search Guest User Endpoint. Performing a manipulation results in sql injection. This vulnerability is identified as CVE-2026-90901. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability classified as critical has been found in Joomshaper Easy Store Extension 1.0.0-3.0.0. This affects some unknown functionality of the component Checkout Search Guest User Endpoint. The manipulation with an unknown input leads to a sql injection vulnerability. CWE is classifying the issue as CWE-89. The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Joomla Extension - joomshaper.com - Authenticated, Privileged SQL Injection in Media Image Deletion in Easy Store extension 1.0.0-3.0.0 - The checkout.searchGuestUser endpoint allowed querying guest checkout records solely by supplying an email address. The server returned complete shipping details (full name, phone number, street address, city, postal code, and country) directly from the #__easystore_guests table with no authentication, session validation, or ownership checks. An unauthenticated attacker could iterate through email lists to enumerate guest customers and harvest sensitive Personally Identifiable Information (PII). Resolved by removing the unauthenticated server-side guest lookup endpoint entirely and migrating autofill functionality to client-side localStorage protected by explicit user consent.

It is possible to read the advisory at joomshaper.com. This vulnerability is uniquely identified as CVE-2026-90901 since 09/14/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 09/23/2026). The attack technique deployed by this issue is T1505 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• Joomshaper

Name

• Easy Store Extension

Version

• 1.0.0-3.0.0

CPE 2.3info

• 🔒

CPE 2.2info

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