CVE-2021-24311
HIGHCVSS 8.8/10EPSS 1.77%
Last modified
CVE-2021-24311 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. The wp_ajax_upload-remote-file AJAX action of the External Media WordPress plugin before 1.0.34 was vulnerable to arbitrary file uploads via any authenticated users.. EPSS estimates a 1.77% chance of exploitation in the next 30 days.
Description
The wp_ajax_upload-remote-file AJAX action of the External Media WordPress plugin before 1.0.34 was vulnerable to arbitrary file uploads via any authenticated users.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| External Media Project | External Media | < 1.0.34 |
References
- https://wpscan.com/vulnerability/4fb90999-6f91-4200-a0cc-bfe9b34a5de9Exploit, Third Party Advisory
- https://www.wordfence.com/blog/2021/05/critical-vulnerability-patched-in-external-media-plugin/Exploit, Third Party Advisory
- https://wpscan.com/vulnerability/4fb90999-6f91-4200-a0cc-bfe9b34a5de9Exploit, Third Party Advisory
- https://www.wordfence.com/blog/2021/05/critical-vulnerability-patched-in-external-media-plugin/Exploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-24311?
The wp_ajax_upload-remote-file AJAX action of the External Media WordPress plugin before 1.0.34 was vulnerable to arbitrary file uploads via any authenticated users.
How severe is CVE-2021-24311?
CVE-2021-24311 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.77% probability of exploitation in the next 30 days.
How do I fix CVE-2021-24311?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2021-24311?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST