DedeCMS 5.8.1-beta Unauthenticated RCE via plus/flink.php
DedeCMS through 5.8.1-beta contains a PHP code injection vulnerability in ShowMsg() where the HTTP Referer header is written into a DedeTemplate string and included. Unauthenticated attackers can send a crafted Referer to /plus/flink.php?dopost=save with an empty validate code to execute arbitrary PHP and system commands. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-10-14.
CVE-2021-48016
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2021-48016
DedeCMS
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://github.com/dedecms/DedeCMS",
"vendor": "DedeCMS",
"product": "DedeCMS",
"versions": [
{
"status": "affected",
"version": "0",
"versionType": "custom",
"lessThanOrEqual": "5.8.1-beta"
}
],
"packageURL": "pkg:github/dedecms/DedeCMS",
"defaultStatus": "unknown"
}
]- Related CVEs
- CVE-2021-48016
Source reference:
/cveMetadata/cveId
Publisher severity
critical
Source reference: /containers/cna/metrics
- Event
- #50159 · Revision 1
- Added to Heist Feed
- Publisher date