{"id":39302,"date":"2026-02-05T16:19:02","date_gmt":"2026-02-05T16:19:02","guid":{"rendered":"http:\/\/localhost\/?p=39302"},"modified":"2026-02-05T16:19:02","modified_gmt":"2026-02-05T16:19:02","slug":"wekan-attachment-migration-attachmentmigrationjs-attachmentmigrationbleed-access-control","status":"publish","type":"post","link":"https:\/\/zero.redgem.net\/?p=39302","title":{"rendered":"WeKan Attachment Migration attachmentMigration.js AttachmentMigrationBleed access control_CVE-2026-1962"},"content":{"rendered":"<p>{&#8220;lastseen&#8221;:&#8221;&#8221;,&#8221;description&#8221;:&#8221;A vulnerability has been found in WeKan up to 8.20. The impacted element is an unknown function of the file server\/attachmentMigration.js of the component Attachment Migration. The manipulation leads to improper access controls. The attack may be initiated remotely. Upgrading to version 8.21 is sufficient to resolve this issue. The identifier of the patch is 053bf1dfb76ef230db162c64a6ed50ebedf67eee. It is recommended to upgrade the affected component.&#8221;,&#8221;published&#8221;:&#8221;2026-02-05T20:32:08.752Z&#8221;,&#8221;modified&#8221;:&#8221;2026-02-05T20:57:22.291Z&#8221;,&#8221;type&#8221;:&#8221;cve&#8221;,&#8221;title&#8221;:&#8221;WeKan Attachment Migration attachmentMigration.js AttachmentMigrationBleed access control&#8221;,&#8221;source&#8221;:&#8221;VulDB&#8221;,&#8221;references&#8221;:&#8221;https:\/\/vuldb.com\/?id.344484\\nhttps:\/\/vuldb.com\/?ctiid.344484\\nhttps:\/\/vuldb.com\/?submit.742677\\nhttps:\/\/github.com\/wekan\/wekan\/commit\/053bf1dfb76ef230db162c64a6ed50ebedf67eee\\nhttps:\/\/github.com\/wekan\/wekan\/releases\/tag\/v8.21\\nhttps:\/\/github.com\/wekan\/wekan\/&#8221;,&#8221;id&#8221;:&#8221;CVE-2026-1962&#8243;,&#8221;bulletinFamily&#8221;:&#8221;&#8221;,&#8221;cwe&#8221;:[&#8220;CWE-284&#8243;,&#8221;CWE-266&#8243;],&#8221;cvelist&#8221;:null,&#8221;sourceData&#8221;:&#8221;n\/a WeKan 8.0\\nn\/a WeKan 8.1\\nn\/a WeKan 8.2\\nn\/a WeKan 8.3\\nn\/a WeKan 8.4\\nn\/a WeKan 8.5\\nn\/a WeKan 8.6\\nn\/a WeKan 8.7\\nn\/a WeKan 8.8\\nn\/a WeKan 8.9\\nn\/a WeKan 8.10\\nn\/a WeKan 8.11\\nn\/a WeKan 8.12\\nn\/a WeKan 8.13\\nn\/a WeKan 8.14\\nn\/a WeKan 8.15\\nn\/a WeKan 8.16\\nn\/a WeKan 8.17\\nn\/a WeKan 8.18\\nn\/a WeKan 8.19\\nn\/a WeKan 8.20&#8243;,&#8221;sourceHref&#8221;:&#8221;&#8221;,&#8221;cvss&#8221;:{&#8220;score&#8221;:5.3,&#8221;severity&#8221;:&#8221;MEDIUM&#8221;,&#8221;vector&#8221;:&#8221;CVSS:4.0\/AV:N\/AC:L\/AT:N\/PR:L\/UI:N\/VC:L\/VI:L\/VA:L\/SC:N\/SI:N\/SA:N\/E:X&#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;WeKan&#8221;,&#8221;version&#8221;:&#8221;8.0&#8243;,&#8221;vendor&#8221;:&#8221;n\/a&#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 vulnerability has been found in WeKan up to 8.20. The impacted element is an unknown function of the file server\/attachmentMigration.js of the component Attachment&#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":[6,8,22,12,21,13,7,11,5],"class_list":["post-39302","post","type-post","status-publish","format-standard","hentry","category-category_cve","tag-cve","tag-cvss","tag-cvss-53","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>WeKan Attachment Migration attachmentMigration.js AttachmentMigrationBleed access control_CVE-2026-1962 - 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=39302\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"WeKan Attachment Migration attachmentMigration.js AttachmentMigrationBleed access control_CVE-2026-1962 - zero redgem\" \/>\n<meta property=\"og:description\" content=\"{&#8220;lastseen&#8221;:&#8221;&#8221;,&#8221;description&#8221;:&#8221;A vulnerability has been found in WeKan up to 8.20. 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