CVE-2024-53860 Potential Abuse for Sending Arbitrary Emails in sp-php-email-handler
Attackers can abuse the contact form script to send arbitrary spam or phishing emails, damaging domain reputation and requiring an upgrade to fix.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-53860?
CVE-2024-53860 is a high-severity vulnerability in Spencer14420 SPEmailHandler-PHP, published on 27 Nov 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
sp-php-email-handler is a PHP package for handling contact form submissions. Messages sent using this script are vulnerable to abuse, as the script allows anybody to specify arbitrary email recipients and include user-provided content in confirmation emails. This could enable malicious actors to use your server to send spam, phishing emails, or other malicious content, potentially damaging your domain's reputation and leading to blacklisting by email providers. Patched in version 1.0.0 by removing user-provided content from confirmation emails. All pre-release versions (alpha and beta) are vulnerable to this issue and should not be used. There are no workarounds for this issue. Users must upgrade to version 1.0.0 to mitigate the vulnerability.
Weakness: CWE-74
Which versions are affected by CVE-2024-53860?
2 open source packages ship an affected version, including spencer14420/sp-php-email-handler.
| Package | Affected | Fixed in |
|---|---|---|
spencer14420/sp-php-email-handler Packagist | All versions | 1.0.0 |
spencer14420/sp-php-email-handler Packagist | All versions | 1.0.0 |
How do I fix CVE-2024-53860?
Upgrade spencer14420/sp-php-email-handler to 1.0.0 or later.
Is CVE-2024-53860 being exploited?
There is no known exploitation of CVE-2024-53860 in the wild and no public exploit code.
Sources
Also known as GHSA-mj5r-x73q-fjw6.