{"id":"CVE-2026-88857","state":"PUBLISHED","title":"Joomla Extension - OrdaSoft.com - Authenticated, Privileged Remote Code Execution in OrdaSoft Joomla Gallery extension for Joomla < 6.2.7","description":"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.","publishedAt":"2026-09-20T17:54:20.540Z","updatedAt":"2026-09-22T04:48:00.648Z","severity":{"score":9.4,"label":"Critical","version":"4.0","vector":"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","source":"Joomla"},"assigner":"Joomla","products":["OrdaSoft.com OrdaSoft Joomla Gallery free extension for Joomla","OrdaSoft.com OrdaSoft Joomla Gallery extension for Joomla"],"affected":[{"vendor":"OrdaSoft.com","product":"OrdaSoft Joomla Gallery free extension for Joomla","packageName":"com_osgallery_light","defaultStatus":"unaffected","versions":[{"version":"1.0.0-6.2.6","status":"affected"}]},{"vendor":"OrdaSoft.com","product":"OrdaSoft Joomla Gallery extension for Joomla","packageName":"com_osgallery","defaultStatus":"unaffected","versions":[{"version":"1.0.0-6.2.6","status":"affected"}]}],"references":["https://www.OrdaSoft.com/"],"weaknesses":["CWE-434"],"ingestedAt":"2026-10-29T20:13:26.108Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/88xxx/CVE-2026-88857.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-88857","state":"PUBLISHED","datePublished":"2026-09-20T17:54:20.540Z","dateUpdated":"2026-09-22T04:48:00.648Z","assignerShortName":"Joomla","assignerOrgId":"6ff30186-7fb7-4ad9-be33-533e7b05e586","dateReserved":"2026-09-10T10:27:00.130Z"},"containers":{"cna":{"title":"Joomla Extension - OrdaSoft.com - Authenticated, Privileged Remote Code Execution in OrdaSoft Joomla Gallery extension for Joomla < 6.2.7","descriptions":[{"lang":"en","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."}],"affected":[{"vendor":"OrdaSoft.com","product":"OrdaSoft Joomla Gallery free extension for Joomla","packageName":"com_osgallery_light","defaultStatus":"unaffected","versions":[{"version":"1.0.0-6.2.6","status":"affected"}]},{"vendor":"OrdaSoft.com","product":"OrdaSoft Joomla Gallery extension for Joomla","packageName":"com_osgallery","defaultStatus":"unaffected","versions":[{"version":"1.0.0-6.2.6","status":"affected"}]}],"references":[{"url":"https://www.OrdaSoft.com/","tags":["product"]}],"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":{"shortName":"Joomla","orgId":"6ff30186-7fb7-4ad9-be33-533e7b05e586","dateUpdated":"2026-09-22T04:48:00.648Z"},"credits":[{"lang":"en","type":"finder","value":"Ala Arfaoui"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 0.1.0-dev"}},"adp":[{"title":"CISA ADP Vulnrichment","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"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-21T16:25:37.182Z"}}]}}}