CVE-2018-20129

HIGH

DedeCMS V5.7 SP2 - Remote Code Execution via Double Extension and Content Type Spoofing

Title source: llm

Description

An issue was discovered in DedeCMS V5.7 SP2. uploads/include/dialog/select_images_post.php allows remote attackers to upload and execute arbitrary PHP code via a double extension and a modified ".php" substring, in conjunction with the image/jpeg content type, as demonstrated by the filename=1.jpg.p*hp value.

References (1)

Core 1

Core References

Exploit, Third Party Advisory x_refsource_misc

http://www.iwantacve.cn/index.php/archives/88/

Scores

CVSS v3 8.8

EPSS 0.6956

EPSS Percentile 98.7%

Attack Vector NETWORK

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE

CWE-94

Status published

Products (1)

dedecms/dedecms 5.7 sp2

Published Dec 13, 2018

Tracked Since Feb 18, 2026