CVE-2026-90901 Joomla Easy Store - Information Disclosure

Joomla Easy Store extension 1.0.0-3.0.0 contains an information disclosure caused by unauthenticated access to the checkout.searchGuestUser endpoint, letting unauthenticated attackers retrieve guest shipping details, exploit requires no authentication.

CVSS base score 8.6 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.28% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Information Disclosure
Impact
Information Disclosure
CVSS vector
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/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-89

Vendor fix

Update to the latest version where the unauthenticated guest lookup endpoint is removed and autofill is migrated to client-side localStorage 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

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