CVE-2026-32040

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Los atacantes pueden crear entradas de sesi\u00f3n con atributos mimeType especialmente dise\u00f1ados que escapan del contexto de URL de datos img src para lograr cross-site scripting cuando se abre el HTML exportado."}], "id": "CVE-2026-32040", "lastModified": "2026-06-17T10:34:59.837", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 4.6, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 1.5, "impactScore": 2.7, "source": "disclosure@vulncheck.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 2.7, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "LOCAL", "availabilityRequirement": "NOT_DEFINED", "baseScore": 2.4, "baseSeverity": "LOW", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "LOW", "subIntegrityImpact": "LOW", "userInteraction": "PASSIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/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", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "disclosure@vulncheck.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-32040", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-03-21T03:12:48.792622Z", "version": "2.0.3"}}]}, "published": "2026-03-19T22:16:40.420", "references": [{"source": "disclosure@vulncheck.com", "tags": ["Issue Tracking"], "url": "https://github.com/openclaw/openclaw/pull/24140"}, {"source": "disclosure@vulncheck.com", "tags": ["Exploit", "Vendor Advisory"], "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-2ww6-868g-2c56"}, {"source": "disclosure@vulncheck.com", "tags": ["Third Party Advisory"], "url": "https://www.vulncheck.com/advisories/openclaw-html-injection-via-unvalidated-image-mime-type-in-data-url-interpolation"}], "sourceIdentifier": "disclosure@vulncheck.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "disclosure@vulncheck.com", "type": "Secondary"}]}

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{"affected": [{"configurations": [{"platform": ["node.js"], "status": "affected", "versions": {"scheme": "generic", "value": "[0,2026.2.23)"}}, {"platform": ["node.js"], "status": "unaffected", "versions": {"scheme": "semver", "value": "2026.2.23"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "OpenClaw", "source": "cna", "vendor": "OpenClaw"}, "product": "openclaw", "vendor": "openclaw"}], "analysis": {"en": {"generated_at": "2026-03-19T23:51:22.809480+00:00", "value": {"mitigation_remediation": ["Upgrade OpenClaw to version 2026.2.23 or later.", "If an upgrade is not possible, validate image MIME types before exporting HTML to prevent injection.", "Avoid opening exported HTML files from untrusted or unknown sources until the issue is resolved.", "Regularly monitor the vendor\u2019s channel for security updates and apply patches without delay."], "summary": {"action": "Patch", "impact": "Stored Cross\u2011Site Scripting"}, "threat_synthesis": {"affected_systems": "The vulnerability affects the OpenClaw product from OpenClaw. All releases before 2026.2.23 are impacted; administrators should verify the installed version and expose any installations below the patched release for remediation.", "description_and_impact": "OpenClaw versions older than 2026.2.23 contain a stored cross\u2011site scripting flaw (CWE\u201179) in the HTML session exporter. Attackers can embed malicious MIME type strings in image content blocks, which break out of the img src data\u2011URL context when the session is exported to HTML. This injection allows arbitrary JavaScript to run in the victim\u2019s browser when the generated HTML is opened, enabling cookie theft, session hijacking, or other client\u2011side attacks.", "risk_and_exploitability": "The CVSS score for this flaw is 2.4, indicating low severity, and no EPSS score is available. The flaw is not listed in the CISA KEV catalog. Exploitation requires an attacker to craft a malicious session entry with a forged MIME type and have a user open the resulting exported HTML file, so the attack vector is user interaction with a local file. Given the low score, widespread exploitation is unlikely, but vulnerable systems should be updated promptly to eliminate the risk."}}}}, "created": "2026-03-20T08:54:46.262688+00:00", "updated": "2026-03-20T10:44:14.250621+00:00", "vendors": ["openclaw", "openclaw$PRODUCT$openclaw"]}