{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata. Fed continuously.","favicon":"https://feed.craftedsignal.io/favicon-32x32.png","feed_url":"https://feed.craftedsignal.io/products/bluespice-5.2.3--version--5.2.7/feed.json","home_page_url":"https://feed.craftedsignal.io/","icon":"https://feed.craftedsignal.io/apple-touch-icon.png","items":[{"_cs_actors":[],"_cs_cpes":["cpe:2.3:a:hallo_welt:bluespice:*:*:*:*:*:*:*:*","cpe:2.3:a:hallowelt:bluespice:*:*:*:*:*:*:*:*"],"_cs_cves":[{"cvss":7.1,"id":"CVE-2026-25716"},{"cvss":9.8,"id":"CVE-2026-25784"}],"_cs_exploited":false,"_cs_has_poc":false,"_cs_poc_references":[],"_cs_products":["BlueSpice (5.0.0-5.1.10)","BlueSpice (5.2.0-5.2.6)","BlueSpice (5.2.3 \u003c= version \u003c 5.2.7)","BlueSpice (container image bluespice/wiki \u003c= 2026-10-19 15:37 UTC)"],"_cs_severities":["critical"],"_cs_tags":["web-application","privilege-escalation","authorization-bypass","cloud","container-security"],"_cs_type":"advisory","_cs_vendors":["Hallo Welt! GmbH"],"content_html":"\u003cp\u003eCVE-2026-25716 is a missing authorization vulnerability in the BlueSpiceUserManager extension for BlueSpice wiki software. The vulnerability exists within the REST endpoints '/bs-usermanager/v1/block/create' and '/bs-usermanager/v1/block/delete'. These endpoints fail to verify if the acting user possesses the required administrative permissions before invoking 'UserManager::blockUser()' or 'UserManager::unblockUser()'. Authenticated users can exploit this to disable any account, including administrators, or reverse existing blocks.\u003c/p\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation allows for the denial of service (DoS) by locking out administrative users or the circumvention of security controls by lifting administrative blocks on restricted accounts.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eInventory instances of BlueSpice running the BlueSpiceUserManager extension.\u003c/li\u003e\n\u003cli\u003eUpgrade BlueSpice instances to version 5.1.11 or later for the 5.1.x branch, or 5.2.7 or later for the 5.2.x branch.\u003c/li\u003e\n\u003cli\u003eImplement strict monitoring of requests to the '/bs-usermanager/v1/block/' API path to identify unauthorized account modification attempts.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-10-23T09:36:08Z","date_published":"2026-10-23T09:35:59Z","id":"https://feed.craftedsignal.io/briefs/2026-10-bluespice-auth-bypass/","summary":"A missing authorization vulnerability in the BlueSpiceUserManager extension allows authenticated users to block or unblock arbitrary accounts, enabling administrative account lockout or unauthorized access restoration.","title":"Hallo Welt! GmbH BlueSpice: Missing Authorization in BlueSpiceUserManager (CVE-2026-25716)","url":"https://feed.craftedsignal.io/briefs/2026-10-bluespice-auth-bypass/"}],"language":"en","title":"CraftedSignal Threat Feed - BlueSpice (5.2.3 \u003c= Version \u003c 5.2.7)","version":"https://jsonfeed.org/version/1.1"}