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CVE-2021-24253

Classyfrieds <= 3.8 - Authenticated Arbitrary File Upload to RCE

HIGH
8.8
CVSS Score
Published: May 5, 2021 at 06:39 PM UTC
Updated: June 17, 2026 at 03:39 AM UTC
1 product affected across 1 vendorClassyfrieds

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Severity
HIGH8.8
Exploit prediction
EPSS 2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Classyfrieds· Classyfrieds Projectwordpress-plugin
95%
v ≤ 3.83.8

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://github.com/jinhuang1102/CVE-ID-Reports/blob/master/classyfrieds.md
x_refsource_CONFIRMExploitThird Party Advisory
Source: [email protected]
https://wpscan.com/vulnerability/ee42c233-0ff6-4b27-a5ec-ad3246bef079

CVSS

8.8HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-434

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