CVE-2024-5317: Newsletter <= 8.3.4 - Unauthenticated Stored Cross-Site Scripting via np1
The Newsletter plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'np1' parameter in all versions up to, and including, 8.3.4 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
wordpress/newsletterto a version that resolves this vulnerability.Fixed in 8.3.4 - Compensating control
Mitigate unauthenticated Stored XSS by restricting access to pages where injected content could execute (e.g., use WAF/ACL to block or rate-limit requests reaching the vulnerable np1 parameter) until patched.
Event History
Frequently Asked Questions
What is the severity of CVE-2024-5317?
CVE-2024-5317 has a medium severity rating due to the potential for stored cross-site scripting attacks.
How do I fix CVE-2024-5317?
To fix CVE-2024-5317, update the Newsletter plugin for WordPress to version 8.3.5 or later.
Who is affected by CVE-2024-5317?
CVE-2024-5317 affects all versions of the Newsletter plugin for WordPress up to and including 8.3.4.
What type of vulnerability is CVE-2024-5317?
CVE-2024-5317 is a stored cross-site scripting vulnerability that arises from insufficient input sanitization.
Can unauthenticated users exploit CVE-2024-5317?
Yes, unauthenticated attackers can exploit CVE-2024-5317 to inject arbitrary web scripts into affected WordPress sites.