WordPress Plugin Vulnerabilities

MStore API < 4.21.0 - Unauthenticated Account Takeover via Firebase Phone Authentication

Description

The plugin 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.

Proof of Concept

Affects Plugins

Fixed in 4.21.0

References

Classification

Miscellaneous

Original Researcher
Sai Praneeth Koti
Submitter
Sai Praneeth Koti
Verified
Yes

Timeline

Publicly Published
2026-08-03 (about 5 days ago)
Added
2026-08-03 (about 4 days ago)
Last Updated
2026-08-07 (about 9 hours ago)

Other