{"id":47900,"date":"2026-04-19T09:23:46","date_gmt":"2026-04-19T09:23:46","guid":{"rendered":"http:\/\/localhost\/?p=47900"},"modified":"2026-04-19T09:23:46","modified_gmt":"2026-04-19T09:23:46","slug":"collabora-kodexplorer-fileupload-endpoint-shareclassphp-improper-authorization","status":"publish","type":"post","link":"https:\/\/zero.redgem.net\/?p=47900","title":{"rendered":"Collabora KodExplorer fileUpload Endpoint share.class.php improper authorization_CVE-2026-6572"},"content":{"rendered":"<p>{&#8220;lastseen&#8221;:&#8221;&#8221;,&#8221;description&#8221;:&#8221;A security vulnerability has been detected in Collabora KodExplorer up to 4.52. Affected by this issue is some unknown functionality of the file \/app\/controller\/share.class.php of the component fileUpload Endpoint. The manipulation of the argument fileUpload leads to improper authorization. Remote exploitation of the attack is possible. The attack&#8217;s complexity is rated as high. The exploitation is known to be difficult. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.&#8221;,&#8221;published&#8221;:&#8221;2026-04-19T12:15:14.167Z&#8221;,&#8221;modified&#8221;:&#8221;2026-04-19T12:15:14.167Z&#8221;,&#8221;type&#8221;:&#8221;cve&#8221;,&#8221;title&#8221;:&#8221;Collabora KodExplorer fileUpload Endpoint share.class.php improper authorization&#8221;,&#8221;source&#8221;:&#8221;VulDB&#8221;,&#8221;references&#8221;:&#8221;https:\/\/vuldb.com\/vuln\/358206\\nhttps:\/\/vuldb.com\/vuln\/358206\/cti\\nhttps:\/\/vuldb.com\/submit\/789988\\nhttps:\/\/vulnplus-note.wetolink.com\/share\/PLCI4v0BWaF8&#8243;,&#8221;id&#8221;:&#8221;CVE-2026-6572&#8243;,&#8221;bulletinFamily&#8221;:&#8221;&#8221;,&#8221;cwe&#8221;:[&#8220;CWE-285&#8243;,&#8221;CWE-266&#8243;],&#8221;cvelist&#8221;:null,&#8221;sourceData&#8221;:&#8221;Collabora KodExplorer 4.0\\nCollabora KodExplorer 4.1\\nCollabora KodExplorer 4.2\\nCollabora KodExplorer 4.3\\nCollabora KodExplorer 4.4\\nCollabora KodExplorer 4.5\\nCollabora KodExplorer 4.6\\nCollabora KodExplorer 4.7\\nCollabora KodExplorer 4.8\\nCollabora KodExplorer 4.9\\nCollabora KodExplorer 4.10\\nCollabora KodExplorer 4.11\\nCollabora KodExplorer 4.12\\nCollabora KodExplorer 4.13\\nCollabora KodExplorer 4.14\\nCollabora KodExplorer 4.15\\nCollabora KodExplorer 4.16\\nCollabora KodExplorer 4.17\\nCollabora KodExplorer 4.18\\nCollabora KodExplorer 4.19\\nCollabora KodExplorer 4.20\\nCollabora KodExplorer 4.21\\nCollabora KodExplorer 4.22\\nCollabora KodExplorer 4.23\\nCollabora KodExplorer 4.24\\nCollabora KodExplorer 4.25\\nCollabora KodExplorer 4.26\\nCollabora KodExplorer 4.27\\nCollabora KodExplorer 4.28\\nCollabora KodExplorer 4.29\\nCollabora KodExplorer 4.30\\nCollabora KodExplorer 4.31\\nCollabora KodExplorer 4.32\\nCollabora KodExplorer 4.33\\nCollabora KodExplorer 4.34\\nCollabora KodExplorer 4.35\\nCollabora KodExplorer 4.36\\nCollabora KodExplorer 4.37\\nCollabora KodExplorer 4.38\\nCollabora KodExplorer 4.39\\nCollabora KodExplorer 4.40\\nCollabora KodExplorer 4.41\\nCollabora KodExplorer 4.42\\nCollabora KodExplorer 4.43\\nCollabora KodExplorer 4.44\\nCollabora KodExplorer 4.45\\nCollabora KodExplorer 4.46\\nCollabora KodExplorer 4.47\\nCollabora KodExplorer 4.48\\nCollabora KodExplorer 4.49\\nCollabora KodExplorer 4.50\\nCollabora KodExplorer 4.51\\nCollabora KodExplorer 4.52&#8243;,&#8221;sourceHref&#8221;:&#8221;&#8221;,&#8221;cvss&#8221;:{&#8220;score&#8221;:6.3,&#8221;severity&#8221;:&#8221;MEDIUM&#8221;,&#8221;vector&#8221;:&#8221;CVSS:4.0\/AV:N\/AC:H\/AT:N\/PR:N\/UI:N\/VC:L\/VI:L\/VA:L\/SC:N\/SI:N\/SA:N\/E:P&#8221;,&#8221;version&#8221;:&#8221;4.0&#8243;},&#8221;cvss2&#8243;:{},&#8221;cvss3&#8243;:{&#8220;version&#8221;:&#8221;&#8221;,&#8221;vectorString&#8221;:&#8221;&#8221;,&#8221;baseScore&#8221;:0,&#8221;baseSeverity&#8221;:&#8221;&#8221;,&#8221;attackVector&#8221;:&#8221;&#8221;,&#8221;attackComplexity&#8221;:&#8221;&#8221;,&#8221;privilegesRequired&#8221;:&#8221;&#8221;,&#8221;userInteraction&#8221;:&#8221;&#8221;,&#8221;scope&#8221;:&#8221;&#8221;,&#8221;confidentialityImpact&#8221;:&#8221;&#8221;,&#8221;integrityImpact&#8221;:&#8221;&#8221;,&#8221;availabilityImpact&#8221;:&#8221;&#8221;,&#8221;cvssV3&#8243;:{&#8220;version&#8221;:&#8221;&#8221;,&#8221;vectorString&#8221;:&#8221;&#8221;,&#8221;baseScore&#8221;:0,&#8221;baseSeverity&#8221;:&#8221;&#8221;,&#8221;attackVector&#8221;:&#8221;&#8221;,&#8221;attackComplexity&#8221;:&#8221;&#8221;,&#8221;privilegesRequired&#8221;:&#8221;&#8221;,&#8221;userInteraction&#8221;:&#8221;&#8221;,&#8221;scope&#8221;:&#8221;&#8221;,&#8221;confidentialityImpact&#8221;:&#8221;&#8221;,&#8221;integrityImpact&#8221;:&#8221;&#8221;,&#8221;availabilityImpact&#8221;:&#8221;&#8221;}},&#8221;href&#8221;:&#8221;&#8221;,&#8221;category_name&#8221;:&#8221;CVE&#8221;,&#8221;post_link&#8221;:&#8221;&#8221;,&#8221;product&#8221;:&#8221;KodExplorer&#8221;,&#8221;version&#8221;:&#8221;4.0&#8243;,&#8221;vendor&#8221;:&#8221;Collabora&#8221;,&#8221;ai_description&#8221;:&#8221;&#8221;,&#8221;ai_severity&#8221;:&#8221;&#8221;,&#8221;ai_vendor&#8221;:&#8221;&#8221;,&#8221;ai_product&#8221;:&#8221;&#8221;,&#8221;ai_version&#8221;:&#8221;&#8221;,&#8221;ai_score&#8221;:0}<\/p>\n","protected":false},"excerpt":{"rendered":"<p>{&#8220;lastseen&#8221;:&#8221;&#8221;,&#8221;description&#8221;:&#8221;A security vulnerability has been detected in Collabora KodExplorer up to 4.52. Affected by this issue is some unknown functionality of the file \/app\/controller\/share.class.php of&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[6,8,23,12,21,13,7,11,5],"class_list":["post-47900","post","type-post","status-publish","format-standard","hentry","category-category_cve","tag-cve","tag-cvss","tag-cvss-63","tag-exploit","tag-medium","tag-news","tag-security","tag-tapic","tag-vulnerability"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Collabora KodExplorer fileUpload Endpoint share.class.php improper authorization_CVE-2026-6572 - zero redgem<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/zero.redgem.net\/?p=47900\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Collabora KodExplorer fileUpload Endpoint share.class.php improper authorization_CVE-2026-6572 - zero redgem\" \/>\n<meta property=\"og:description\" content=\"{&#8220;lastseen&#8221;:&#8221;&#8221;,&#8221;description&#8221;:&#8221;A security vulnerability has been detected in Collabora KodExplorer up to 4.52. 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