CVE-2026-6261

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-6261", "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599", "state": "PUBLISHED", "assignerShortName": "Wordfence", "dateReserved": "2026-04-13T23:57:52.714Z", "datePublished": "2026-05-05T11:25:00.302Z", "dateUpdated": "2026-05-05T15:01:12.799Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599", "shortName": "Wordfence", "dateUpdated": "2026-05-05T11:25:00.302Z"}, "affected": [{"vendor": "MuffinGroup", "product": "Betheme", "versions": [{"version": "0", "status": "affected", "lessThanOrEqual": "28.4", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "The Betheme theme for WordPress is vulnerable to Arbitrary File Upload in versions up to, and including, 28.4. This is due to the upload_icons() function workflow moving and unzipping user-controlled ZIP files into a public uploads directory without validating extracted file types. This makes it possible for authenticated attackers, with author-level access and above, to upload arbitrary files (including PHP) and achieve remote code execution via the Icons icon-pack upload flow."}], "title": "Betheme <= 28.4 - Authenticated (Author+) Arbitrary File Upload to Remote Code Execution via Icon Pack Upload", "references": [{"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/722c04c3-8f74-4081-b3a4-cb1ae2027312?source=cve"}, {"url": "https://support.muffingroup.com/changelog/"}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-434 Unrestricted Upload of File with Dangerous Type", "cweId": "CWE-434", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH"}}], "credits": [{"lang": "en", "type": "finder", "value": "Craig Smith"}, {"lang": "en", "type": "finder", "value": "Leonid Semenenko"}], "timeline": [{"time": "2026-04-14T00:13:32.000Z", "lang": "en", "value": "Vendor Notified"}, {"time": "2026-05-04T22:35:37.000Z", "lang": "en", "value": "Disclosed"}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-05-05T15:00:03.994122Z", "id": "CVE-2026-6261", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-05-05T15:01:12.799Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-6261", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-05-05T15:00:03.994122Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-05-05T15:01:04.021Z"}}], "cna": {"title": "Betheme <= 28.4 - Authenticated (Author+) Arbitrary File Upload to Remote Code Execution via Icon Pack Upload", "credits": [{"lang": "en", "type": "finder", "value": "Craig Smith"}, {"lang": "en", "type": "finder", "value": "Leonid Semenenko"}], "metrics": [{"cvssV3_1": {"version": "3.1", "baseScore": 8.8, "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}}], "affected": [{"vendor": "MuffinGroup", "product": "Betheme", "versions": [{"status": "affected", "version": "0", "versionType": "semver", "lessThanOrEqual": "28.4"}], "defaultStatus": "unaffected"}], "timeline": [{"lang": "en", "time": "2026-04-14T00:13:32.000Z", "value": "Vendor Notified"}, {"lang": "en", "time": "2026-05-04T22:35:37.000Z", "value": "Disclosed"}], "references": [{"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/722c04c3-8f74-4081-b3a4-cb1ae2027312?source=cve"}, {"url": "https://support.muffingroup.com/changelog/"}], "descriptions": [{"lang": "en", "value": "The Betheme theme for WordPress is vulnerable to Arbitrary File Upload in versions up to, and including, 28.4. This is due to the upload_icons() function workflow moving and unzipping user-controlled ZIP files into a public uploads directory without validating extracted file types. This makes it possible for authenticated attackers, with author-level access and above, to upload arbitrary files (including PHP) and achieve remote code execution via the Icons icon-pack upload flow."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-434", "description": "CWE-434 Unrestricted Upload of File with Dangerous Type"}]}], "providerMetadata": {"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599", "shortName": "Wordfence", "dateUpdated": "2026-05-05T11:25:00.302Z"}}}, "cveMetadata": {"cveId": "CVE-2026-6261", "state": "PUBLISHED", "dateUpdated": "2026-05-05T15:01:12.799Z", "dateReserved": "2026-04-13T23:57:52.714Z", "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599", "datePublished": "2026-05-05T11:25:00.302Z", "assignerShortName": "Wordfence"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Betheme", "vendor": "MuffinGroup", "versions": [{"lessThanOrEqual": "28.4", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "security@wordfence.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The Betheme theme for WordPress is vulnerable to Arbitrary File Upload in versions up to, and including, 28.4. This is due to the upload_icons() function workflow moving and unzipping user-controlled ZIP files into a public uploads directory without validating extracted file types. This makes it possible for authenticated attackers, with author-level access and above, to upload arbitrary files (including PHP) and achieve remote code execution via the Icons icon-pack upload flow."}, {"lang": "es", "value": "El tema Betheme para WordPress es vulnerable a la Carga Arbitraria de Archivos en versiones hasta la 28.4, inclusive. Esto se debe a que el flujo de trabajo de la funci\u00f3n upload_icons() mueve y descomprime archivos ZIP controlados por el usuario en un directorio p\u00fablico de cargas sin validar los tipos de archivos extra\u00eddos. Esto permite a atacantes autenticados, con acceso de nivel de autor y superior, cargar archivos arbitrarios (incluido PHP) y lograr ejecuci\u00f3n remota de c\u00f3digo a trav\u00e9s del flujo de carga de paquetes de iconos de Icons."}], "id": "CVE-2026-6261", "lastModified": "2026-10-26T19:10:00.163", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "security@wordfence.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-6261", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-05-05T15:00:03.994122Z", "version": "2.0.3"}}]}, "published": "2026-05-05T12:16:21.453", "references": [{"source": "security@wordfence.com", "url": "https://support.muffingroup.com/changelog/"}, {"source": "security@wordfence.com", "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/722c04c3-8f74-4081-b3a4-cb1ae2027312?source=cve"}], "sourceIdentifier": "security@wordfence.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-434"}], "source": "security@wordfence.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,28.4]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Betheme", "source": "cna", "vendor": "MuffinGroup"}, "product": "betheme", "vendor": "muffingroup"}, {"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"}], "created": "2026-05-05T12:45:24.350742+00:00", "updated": "2026-05-05T14:15:19.873495+00:00", "vendors": ["muffingroup", "muffingroup$PRODUCT$betheme", "wordpress", "wordpress$PRODUCT$wordpress"]}