CVE-2021-24253
Last modified
CVE-2021-24253 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. The Classyfrieds WordPress plugin through 3.8 does not properly check the uploaded file when an authenticated user adds a listing, only checking the content-type in the request. This allows any authenticated user to upload arbitrary PHP files via the Add Listing feature of the plugin, leading to RCE.. EPSS estimates a 1.91% chance of exploitation in the next 30 days.
Description
The Classyfrieds WordPress plugin through 3.8 does not properly check the uploaded file when an authenticated user adds a listing, only checking the content-type in the request. This allows any authenticated user to upload arbitrary PHP files via the Add Listing feature of the plugin, leading to RCE.
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 |
|---|---|---|
| Classyfrieds Project | Classyfrieds | <= 3.8 |
References
- https://github.com/jinhuang1102/CVE-ID-Reports/blob/master/classyfrieds.mdExploit, Third Party Advisory
- https://wpscan.com/vulnerability/ee42c233-0ff6-4b27-a5ec-ad3246bef079Exploit, Third Party Advisory
- https://github.com/jinhuang1102/CVE-ID-Reports/blob/master/classyfrieds.mdExploit, Third Party Advisory
- https://wpscan.com/vulnerability/ee42c233-0ff6-4b27-a5ec-ad3246bef079Exploit, 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.
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- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
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