{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-16558", "assignerOrgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81", "state": "PUBLISHED", "assignerShortName": "WPScan", "dateReserved": "2026-07-22T12:09:48.181Z", "datePublished": "2026-08-08T06:00:11.244Z", "dateUpdated": "2026-08-10T19:45:58.875Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81", "shortName": "WPScan", "dateUpdated": "2026-08-08T06:00:11.244Z"}, "title": "YMC Filter < 3.12.8 - Contributor+ Stored XSS via Layout Builder Schema", "problemTypes": [{"descriptions": [{"description": "CWE-79 Cross-Site Scripting (XSS)", "lang": "en", "type": "CWE"}]}], "affected": [{"vendor": "Unknown", "product": "YMC Filter", "versions": [{"status": "affected", "versionType": "semver", "version": "3.6.0", "lessThan": "3.12.8"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "The YMC Filter WordPress plugin before 3.12.8 does not sanitize and escape a layout builder setting before outputting it on a public endpoint, and does not verify object ownership when the setting is saved, allowing users with the Contributor role and above to store JavaScript that executes in the browser of any visitor viewing an affected filter."}], "references": [{"url": "https://wpscan.com/vulnerability/06ba0551-deab-41fb-b501-eef0727b431a/", "tags": ["exploit", "vdb-entry", "technical-description"]}], "credits": [{"lang": "en", "value": "Usama Arshad", "type": "finder"}, {"lang": "en", "value": "WPScan", "type": "coordinator"}], "source": {"discovery": "EXTERNAL"}, "x_generator": {"engine": "WPScan CVE Generator"}}, "adp": [{"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-79", "lang": "en", "description": "CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"}]}], "metrics": [{"cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 5.4, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-08-10T19:45:31.018500Z", "id": "CVE-2026-16558", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-10T19:45:58.875Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 5.4, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2026-16558", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-08-10T19:45:31.018500Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-79", "description": "CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-10T19:45:52.670Z"}}], "cna": {"title": "YMC Filter < 3.12.8 - Contributor+ Stored XSS via Layout Builder Schema", "source": {"discovery": "EXTERNAL"}, "credits": [{"lang": "en", "type": "finder", "value": "Usama Arshad"}, {"lang": "en", "type": "coordinator", "value": "WPScan"}], "affected": [{"vendor": "Unknown", "product": "YMC Filter", "versions": [{"status": "affected", "version": "3.6.0", "lessThan": "3.12.8", "versionType": "semver"}], "defaultStatus": "unaffected"}], "references": [{"url": "https://wpscan.com/vulnerability/06ba0551-deab-41fb-b501-eef0727b431a/", "tags": ["exploit", "vdb-entry", "technical-description"]}], "x_generator": {"engine": "WPScan CVE Generator"}, "descriptions": [{"lang": "en", "value": "The YMC Filter WordPress plugin before 3.12.8 does not sanitize and escape a layout builder setting before outputting it on a public endpoint, and does not verify object ownership when the setting is saved, allowing users with the Contributor role and above to store JavaScript that executes in the browser of any visitor viewing an affected filter."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "description": "CWE-79 Cross-Site Scripting (XSS)"}]}], "providerMetadata": {"orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81", "shortName": "WPScan", "dateUpdated": "2026-08-08T06:00:11.244Z"}}}, "cveMetadata": {"cveId": "CVE-2026-16558", "state": "PUBLISHED", "dateUpdated": "2026-08-10T19:45:58.875Z", "dateReserved": "2026-07-22T12:09:48.181Z", "assignerOrgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81", "datePublished": "2026-08-08T06:00:11.244Z", "assignerShortName": "WPScan"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "YMC Filter", "vendor": "Unknown", "versions": [{"lessThan": "3.12.8", "status": "affected", "version": "3.6.0", "versionType": "semver"}]}], "source": "[email protected]"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The YMC Filter WordPress plugin before 3.12.8 does not sanitize and escape a layout builder setting before outputting it on a public endpoint, and does not verify object ownership when the setting is saved, allowing users with the Contributor role and above to store JavaScript that executes in the browser of any visitor viewing an affected filter."}], "id": "CVE-2026-16558", "lastModified": "2026-08-10T20:17:27.310", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.3, "impactScore": 2.7, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-16558", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-08-10T19:45:31.018500Z", "version": "2.0.3"}}]}, "published": "2026-08-08T07:17:10.130", "references": [{"source": "[email protected]", "url": "https://wpscan.com/vulnerability/06ba0551-deab-41fb-b501-eef0727b431a/"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "unaffected", "versions": null}], "enrichment": {"confidence": 80.0, "confidence_source": "inferred", "scores": [{"score": 80.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "product": "wordpress", "vendor": "wordpress"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[3.6.0,3.12.8)"}}], "enrichment": {"confidence": 75.0, "confidence_source": "inferred", "scores": [{"score": 75.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "YMC Filter", "source": "cna", "vendor": "Unknown"}, "product": "ymc_filter", "vendor": "ymc_filter"}], "created": "2026-08-08T07:30:17.293976+00:00", "updated": "2026-08-10T23:30:07.669386+00:00", "vendors": ["wordpress", "wordpress$PRODUCT$wordpress", "ymc_filter", "ymc_filter$PRODUCT$ymc_filter"]}