Stacks Mobile App Builder <= 5.2.3 - Authentication Bypass via Account Takeover
Strategic Overview
- Status
- Unpatched
- Affected Plugin
- Stacks Mobile App Builder – The most powerful Mobile Applications Drag and Drop builder
- Affected Version
<= 5.2.3- CVSS
- 9.8Critical
- Weakness type
- CWE-288 · Authentication Bypass Using an Alternate Path or Channel
- CVE
CVE-2024-50477
At a glance
CVE-2024-50477 is a critical-severity Authentication Bypass Using an Alternate Path or Channel vulnerability in the Stacks Mobile App Builder WordPress plugin, affecting versions <= 5.2.3. It carries a CVSS score of 9.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires no authentication. No fixed release has been reported yet; treat installations running this software as exposed. Disclosed October 2024, reported by stealthcopter.
Vulnerability Overview
The Stacks Mobile App Builder – The most powerful Mobile Applications Drag and Drop builder plugin for WordPress is vulnerable to authentication bypass in all versions up to, and including, 5.2.3. This is due to the plugin not properly verifying a user's identity prior to authenticating them via the receive_request_checkout() function. This makes it possible for unauthenticated attackers to log in as any user based on user ID.
Technical Analysis
The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site, and no interaction from a victim user. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.
CWE-288: Authentication Bypass Using an Alternate Path or Channel
Stacks Mobile App Builder <= 5.2.3 carries this weakness at receive_request_checkout(), and reaching it takes a caller who can reach the endpoint. Authentication bypass through an alternate path means the application has a second route to a protected action that skips the checks the primary route performs.
The protection on the main path becomes irrelevant, because the attacker simply uses the route that never asks. No fixed build of this plugin is recorded for Stacks Mobile App Builder yet, so installs running <= 5.2.3 stay exposed until the vendor ships one.
Remediation
No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.
How does WordSec protect against this?
Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. No patched version is recorded yet, which is the case where a filtering layer matters most, because there is nothing to update to.
- Login Security
- Alerts
External References
Related records
Other vulnerabilities in Stacks Mobile App Builder – The most powerful Mobile Applications Drag and Drop builder
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