Classyfrieds <= 3.8 - Authenticated Arbitrary File Upload to RCE
Priority MEDIUM 42CWE-434Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-434.
Summary
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.
Why it matters now
EPSS 0.01906 79th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Unknown | Classyfrieds | 3.8 – 3.8 | — | No fix listed | CNA |
- Classyfrieds VendorUnknown Affected 3.8 – 3.8 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:classyfrieds_project:classyfrieds:*:*:*:*:*:wordpress:*:* | up to 3.8 | Vulnerable | Classyfrieds Project |
- cpe:2.3:a:classyfrieds_project:classyfrieds:*:*:*:*:*:wordpress:*:* Versions up to 3.8 Vulnerable ·Classyfrieds Project
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-24253
- 2026-10-03 Alias added: GHSA-rrx2-h7gv-6jx5
References
Sources
- CVE-2021-24253 · CVE Program
- CVE-2021-24253 · NVD
- FIRST EPSS
- GHSA-rrx2-h7gv-6jx5 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences