CVE-2024-9511 Deserialization in FluentSMTP – WP SMTP Plugin with Amazon SES, SendGrid, MailGun, Postmark, Google and Any SMTP Provider
Unauthenticated attackers can inject PHP objects via deserialization, potentially leading to code execution or data theft if a POP chain exists.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-9511?
CVE-2024-9511 is a critical unsafe deserialization vulnerability in techjewel FluentSMTP – WP SMTP Plugin with Amazon SES, SendGrid, MailGun, Postmark, Google and Any SMTP Provider, published on 23 Nov 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The FluentSMTP – WP SMTP Plugin with Amazon SES, SendGrid, MailGun, Postmark, Google and Any SMTP Provider plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 2.2.82 via deserialization of untrusted input in the 'formatResult' function. This makes it possible for unauthenticated attackers to inject a PHP Object. No known POP chain is present in the vulnerable software. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code. The vulnerability was partially patched in version 2.2.82.
Weakness: CWE-502
Which versions are affected by CVE-2024-9511?
How do I fix CVE-2024-9511?
No fix has been published for CVE-2024-9511 yet. Limit exposure of the affected software until one is available.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2024-9511 being exploited?
There is no known exploitation of CVE-2024-9511 in the wild and no public exploit code.
Sources
Also known as GHSA-jmm7-7292-722m.