CVE-2026-72843 EverShop Missing Authorization on PATCH /api/customers/:id Allows Unauthenticated Account Takeover
Unauthenticated attackers can take over customer accounts by modifying email and password fields via an unprotected API endpoint.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-72843?
CVE-2026-72843 is a critical missing authorization vulnerability in evershopcommerce evershop, published on 20 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The customer update route in EverShop is declared with "access": "public" in packages/evershop/src/modules/customer/api/updateCustomer/route.json, which causes the admin authentication middleware to call next() without checking the caller, and no customer-session middleware guards the route; the only middleware in the chain parses the JSON body. The handler in updateCustomer.js then loads the customer by the uuid taken from the URL path and writes the supplied fields back to that record, hashing a password if one is provided, without verifying that the caller owns the record. An unauthenticated request carrying a known customer uuid can therefore overwrite that customer's email address and password and read back the updated record from the 200 response, taking over the account and locking out its owner. Customer uuids are exposed through order confirmation email links and administrative URLs. Version 2.2.1 changes the route to "access": "private".
Weakness: CWE-862
Which versions are affected by CVE-2026-72843?
How do I fix CVE-2026-72843?
No fix has been published for CVE-2026-72843 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-72843 being exploited?
There is no known exploitation of CVE-2026-72843 in the wild and no public exploit code.
Sources
Also known as GHSA-m3qj-pp48-6w2p.