cve-2021-48016

CRITICAL CVSS 9.3 vulncheck_kev

Description

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.

Timeline

Published: 2026-10-22 00:00 UTC
Last Modified: 2026-10-22

CVSS Details

CVSS details not available.

Affected Products

No product information available.

References

No references available.

Linked Vulnerabilities

No linked vulnerabilities found.

{
  "cvss": 9.3,
  "datePublished": "2026-10-22T00:00:00Z",
  "dateUpdated": "2026-10-22T00:00:00Z",
  "description": "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.",
  "dueDate": "",
  "id": "CVE-2021-48016",
  "kev_catalogs": [
    "vulncheck"
  ],
  "knownRansomwareCampaignUse": "Unknown",
  "product": "DedeCMS",
  "requiredAction": "Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.",
  "severity": "CRITICAL",
  "source": "vulncheck_kev",
  "title": "DedeCMS DedeCMS Improper Control of Generation of Code",
  "vendor": "DedeCMS"
}

cve-2021-48016

Raw JSON Data