---
id: CVE-2026-90902
title: >-
  Joomla Extension - joomshaper.com - Authenticated, Privileged SQL Injection in
  Coupon Bulk Update in Easy Store extension 1.0.0-3.0.0 - The coupon bulk
  update task
  (administrator/index.php?option=com_easystore&task=coupon.couponBulkUpdat…
summary: >-
  Joomla Extension - joomshaper.com - Authenticated, Privileged SQL Injection in
  Coupon Bulk Update in Easy Store extension 1.0.0-3.0.0 - The coupon bulk
  update task
  (administrator/index.php?option=com_easystore&task=coupon.couponBulkUpdat…
severity: high
cvss: 8.6
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'
cwe:
  - CWE-89
  - CWE-74
vendor: joomshaper.com
product: Easy Store extension for Joomla
affected:
  - easy_store_extension_for_joomla 1.0.0-3.0.0
published: '2026-09-23'
updated: '2026-09-25'
sourceUpdated: '2026-09-25T18:17:32.240'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-90902'
references:
  - url: 'https://www.joomshaper.com/easystore'
    label: security@joomla.org
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-23T19:33:17.712297Z'
cvssSource: cna
epss: 0.00249
epssPercentile: 0.14446
ingestedAt: '2026-09-23T19:31:04.471Z'
---

## Overview

Joomla Extension - joomshaper.com - Authenticated, Privileged SQL Injection in Coupon Bulk Update in Easy Store extension 1.0.0-3.0.0 - The coupon bulk update task (administrator/index.php?option=com_easystore&task=coupon.couponBulkUpdate) took input IDs and directly concatenated them into raw SQL IN (...) clauses in ProductCoupon.php and CouponsModel.php without sanitization or parameterization. An authenticated administrator could manipulate the query through injected SQL syntax. Resolved by strictly casting all IDs to integers (array_map('intval', ...)) and adopting parameterized ->whereIn() query construction.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.