What is CVE-2019-8933?

CVE-2019-8933 is a high-severity vulnerability in Dedecms, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2019-02-19.

How severe is CVE-2019-8933?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2019-8933 known to be exploited?

3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Arbitrary file upload in Dedecms

CVE-2019-8933

In DedeCMS 5.7SP2, attackers can upload a .php file to the uploads/ directory (without being blocked by the Web Application Firewall), and then execute this file, via this sequence of steps: visiting the management page, clicking on the template, clicking on Default Template Management, clicking on New Template, and modifying the filename from ../index.html to ../index.php.

Vulnerability class: Unrestricted File Upload

EPSS: 0.034 (87.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Dedecms — versions 5.7
N/a — versions n/a

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

Public proof-of-concept exploits

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2019-8933?: CVE-2019-8933 is a high-severity vulnerability in Dedecms, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2019-02-19.
How severe is CVE-2019-8933?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2019-8933 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.