CVE-2021-24857
Last modified
CVE-2021-24857 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. The ToTop Link WordPress plugin through 1.7.1 passes base64 encoded user input to the unserialize() PHP function, which could lead to PHP Object injection if a plugin installed on the blog has a suitable gadget chain.. EPSS estimates a 1.84% chance of exploitation in the next 30 days.
Description
The ToTop Link WordPress plugin through 1.7.1 passes base64 encoded user input to the unserialize() PHP function, which could lead to PHP Object injection if a plugin installed on the blog has a suitable gadget chain.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Nocean | Totop Link | <= 1.7.1 |
References
- https://wpscan.com/vulnerability/518204d8-fbf5-4bfa-9db5-835f908f8d8eExploit, Third Party Advisory
- https://wpscan.com/vulnerability/518204d8-fbf5-4bfa-9db5-835f908f8d8eExploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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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-2021-24857?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST
