{"id":39174,"date":"2026-02-04T19:00:52","date_gmt":"2026-02-04T19:00:52","guid":{"rendered":"http:\/\/localhost\/?p=39174"},"modified":"2026-02-04T19:00:52","modified_gmt":"2026-02-04T19:00:52","slug":"wekan-ldap-user-sync-syncuserjs-syncldapbleed-access-control","status":"publish","type":"post","link":"https:\/\/zero.redgem.net\/?p=39174","title":{"rendered":"WeKan LDAP User Sync syncUser.js SyncLDAPBleed access control_CVE-2026-1898"},"content":{"rendered":"<p>{&#8220;lastseen&#8221;:&#8221;&#8221;,&#8221;description&#8221;:&#8221;A vulnerability was determined in WeKan up to 8.20. This affects an unknown part of the file packages\/wekan-ldap\/server\/syncUser.js of the component LDAP User Sync. This manipulation causes improper access controls. It is possible to initiate the attack remotely. Upgrading to version 8.21 is able to mitigate this issue. Patch name: 146905a459106b5d00b4f09453a6554255e6965a. You should upgrade the affected component.&#8221;,&#8221;published&#8221;:&#8221;2026-02-05T00:32:09.720Z&#8221;,&#8221;modified&#8221;:&#8221;2026-02-05T00:32:09.720Z&#8221;,&#8221;type&#8221;:&#8221;cve&#8221;,&#8221;title&#8221;:&#8221;WeKan LDAP User Sync syncUser.js SyncLDAPBleed access control&#8221;,&#8221;source&#8221;:&#8221;VulDB&#8221;,&#8221;references&#8221;:&#8221;https:\/\/vuldb.com\/?id.344270\\nhttps:\/\/vuldb.com\/?ctiid.344270\\nhttps:\/\/vuldb.com\/?submit.742676\\nhttps:\/\/github.com\/wekan\/wekan\/commit\/146905a459106b5d00b4f09453a6554255e6965a\\nhttps:\/\/github.com\/wekan\/wekan\/releases\/tag\/v8.21\\nhttps:\/\/github.com\/wekan\/wekan\/&#8221;,&#8221;id&#8221;:&#8221;CVE-2026-1898&#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 was determined in WeKan up to 8.20. This affects an unknown part of the file packages\/wekan-ldap\/server\/syncUser.js of the component LDAP User Sync. This&#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-39174","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 LDAP User Sync syncUser.js SyncLDAPBleed access control_CVE-2026-1898 - 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=39174\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"WeKan LDAP User Sync syncUser.js SyncLDAPBleed access control_CVE-2026-1898 - zero redgem\" \/>\n<meta property=\"og:description\" content=\"{&#8220;lastseen&#8221;:&#8221;&#8221;,&#8221;description&#8221;:&#8221;A vulnerability was determined in WeKan up to 8.20. 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