PatchTheCVECVE-2024-5674: The Newsletter - API v1 and v2 addon plugin for WordPress is vulnerable to unauthorized subscribers management
CVE-2024-5674 is a medium-severity flaw (CVSS 6.5) affecting newsletter. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
The Newsletter - API v1 and v2 addon plugin for WordPress is vulnerable to unauthorized subscribers management due to PHP type juggling issue on the check_api_key function in all versions up to, and including, 2.4.5. This makes it possible for unauthenticated attackers to list, create or delete newsletter subscribers. This issue affects only sites running the PHP version below 8.0
Why this priority
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 6.5 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.3% (top 75%) |
| CISA exploited list | No |
| Weakness | CWE-862 |
| Published | 2024-06-12 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2024-5674?
newsletter: upgrade to 2.4.6. Exact commands for each OS are on this page.
Is CVE-2024-5674 being exploited?
CVE-2024-5674 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2024-5674 affect?
CVE-2024-5674 affects newsletter. Severity is medium (CVSS 6.5). The Newsletter - API v1 and v2 addon plugin for WordPress is vulnerable to unauthorized subscribers management due to PHP type juggling issue on the check_api_key function in all versions up to, and including, 2.4.5. This makes it possible
How urgent is CVE-2024-5674?
Priority 34/100. Remotely exploitable, no login, no user action
Software pages
WordPress vulnerabilities · PHP vulnerabilities
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