CVE-2026-16030MStore API < 4.21.0 - Unauthenticated Account Takeover via Firebase Phone Authentication
Updated under an hour ago ()
Does this affect you?
It affects Unknown MStore API. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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The MStore API WordPress plugin before 4.21.0 does not correctly verify the cryptographic signature of the token used to authenticate its phone-based login, allowing unauthenticated attackers who know a registered user's phone number to forge a token and take over that user's account, including administrator accounts.
- CVSS
- 8.1 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-287
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- WPScan
- NVD analysis
- Deferred
- Record last updated
- Aug 7, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Unknown MStore API unknown:mstore_api (from the name) | before 4.21.0 | CNA record |
References
- https://wpscan.com/vulnerability/adf8ffe0-39a2-4d26-af11-1ac807800735/exploit, vdb-entry, technical-description
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.