The Post SMTP plugin for WordPress has a security flaw that allows unauthorized users to access a function called “regenerate_qrcode()” in versions 2.9.11 and below. This means that anyone who is logged in and has at least subscriber-level access can generate QR codes without proper authorization.
This information is sourced from www.wpvulnerability.com. An open-source database of vulnerabilities maintained by the community. Help us out by submitting vulnerabilities!
Version compare shows which versions have a vulnerability. For example: >= 2.2.8 <= 2.2.21 means:
> from 2.2.8
= including 2.2.8 & 2.2.21
< to 2.2.21
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