---
title: "CVE-2026-90899: Joomla Easy Store - Broken Access Control"
description: "Joomla Easy Store extension 1.0.0-3.0.0 contains an IDOR vulnerability caused by unauthenticated access to the checkout.searchGuestUser endpoint, letting unauthenticated attackers access guest PII via email enumeration, exploit requires no authentication."
url: https://panop.io/threat-heartbeat/CVE-2026-90899/
---

# CVE-2026-90899 Joomla Easy Store - Broken Access Control

Joomla Easy Store extension 1.0.0-3.0.0 contains an IDOR vulnerability caused by unauthenticated access to the checkout.searchGuestUser endpoint, letting unauthenticated attackers access guest PII via email enumeration, exploit requires no authentication.

CVSS base score 8.2 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.33% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-90899)

## Details

Type

Broken Access Control

Impact

Information Disclosure

CVSS vector

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Published

23 September 2026

Updated

15 October 2026

Weakness

[CWE-200](https://cwe.mitre.org/data/definitions/200.html)

## Vendor fix

Update to the latest version where the unauthenticated guest lookup endpoint is removed and functionality moved to client-side with user consent.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-90899](https://nvd.nist.gov/vuln/detail/CVE-2026-90899)
- [https://www.joomshaper.com/easystore](https://www.joomshaper.com/easystore)

[← All CVEs](https://panop.io/threat-heartbeat/)

## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

[Book a demo](https://panop.io/demo)