{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-88857","assignerOrgId":"6ff30186-7fb7-4ad9-be33-533e7b05e586","state":"PUBLISHED","assignerShortName":"Joomla","dateReserved":"2026-09-10T10:27:00.130Z","datePublished":"2026-09-20T17:54:20.540Z","dateUpdated":"2026-09-22T04:48:00.648Z"},"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","packageName":"com_osgallery_light","product":"OrdaSoft Joomla Gallery free extension for Joomla","vendor":"OrdaSoft.com","versions":[{"status":"affected","version":"1.0.0-6.2.6"}]},{"defaultStatus":"unaffected","packageName":"com_osgallery","product":"OrdaSoft Joomla Gallery extension for Joomla","vendor":"OrdaSoft.com","versions":[{"status":"affected","version":"1.0.0-6.2.6"}]}],"credits":[{"lang":"en","type":"finder","value":"Ala Arfaoui"}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"Joomla Extension - OrdaSoft.com - Authenticated, Privileged Remote Code Execution in OrdaSoft Joomla Gallery extension for Joomla < 6.2.7 - The extensions saveWatermark() copied an uploaded file into a web-accessible directory using the client-supplied filename exactly as sent, with no extension check, no content check, and no filename sanitisation of any kind. An authenticated core.manage user could upload a .php file disguised with an image Content-Type header and execute it directly by requesting the resulting path."}],"value":"Joomla Extension - OrdaSoft.com - Authenticated, Privileged Remote Code Execution in OrdaSoft Joomla Gallery extension for Joomla < 6.2.7 - The extensions saveWatermark() copied an uploaded file into a web-accessible directory using the client-supplied filename exactly as sent, with no extension check, no content check, and no filename sanitisation of any kind. An authenticated core.manage user could upload a .php file disguised with an image Content-Type header and execute it directly by requesting the resulting path."}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":9.4,"baseSeverity":"CRITICAL","exploitMaturity":"NOT_DEFINED","privilegesRequired":"HIGH","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"HIGH","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-434","description":"CWE-434 Unrestricted Upload of File with Dangerous Type","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"6ff30186-7fb7-4ad9-be33-533e7b05e586","shortName":"Joomla","dateUpdated":"2026-09-22T04:48:00.648Z"},"references":[{"tags":["product"],"url":"https://www.OrdaSoft.com/"}],"source":{"discovery":"UNKNOWN"},"title":"Joomla Extension - OrdaSoft.com - Authenticated, Privileged Remote Code Execution in OrdaSoft Joomla Gallery extension for Joomla < 6.2.7","x_generator":{"engine":"Vulnogram 0.1.0-dev"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-21T16:25:23.553570Z","id":"CVE-2026-88857","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":"2026-09-21T16:25:37.182Z"}}]}}