{"id":"CVE-2026-114388","kind":"vulnerability","aliases":["CVE-2026-114388"],"related":[],"title":"Chamilo LMS: unauthenticated users can change gradebook certificates for any course","description":"Chamilo LMS 2.0.0 pre-releases from 2.0.0-alpha.1 before 2.0.0-RC.3 contain a missing access control vulnerability in GradebookController that allows unauthenticated users to modify gradebook certificates. Attackers can request the set_default_certificate endpoint with any course id and document id to tamper with certificate configuration for any course.","summary":"Chamilo LMS 2.0.0 pre-releases from 2.0.0-alpha.1 before 2.0.0-RC.3 have a missing access check in GradebookController. An unauthenticated attacker can call the set_default_certificate endpoint with any course and document id to change certificate settings for that course.","severity":"medium","cvss":6.9,"epss":0.00167,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["chamilo","lms","package","php","self-hosted"],"not_affected_if":["default-config"],"how_to_check":"- Check the installed Chamilo version in the application's version file or admin dashboard and see whether it falls in 2.0.0-alpha.1 through 2.0.0-RC.2.\n- Confirm whether the `set_default_certificate` route in GradebookController is reachable from the internet.","fix":"- Upgrade Chamilo LMS to `2.0.0-RC.3` or later.\n- Until upgraded, restrict access to the gradebook routes at the web server or proxy.","status":"open","published_at":"2026-10-21T13:18:29+00:00","first_seen_at":"2026-10-23T21:57:28+00:00","triaged_at":"2026-10-25T03:39:05+00:00","updated_at":"2026-10-25T03:39:05+00:00","category":"package","confidence":0.6,"triage":{"at":"2026-10-25T03:39:05Z","model":"claude-haiku-5-5","output":{"fix":"- Upgrade Chamilo LMS to `2.0.0-RC.3` or later.\n- Until upgraded, restrict access to the gradebook routes at the web server or proxy.","reach":"internet","title":"Chamilo LMS: unauthenticated users can change gradebook certificates for any course","impact":"medium","summary":"Chamilo LMS 2.0.0 pre-releases from 2.0.0-alpha.1 before 2.0.0-RC.3 have a missing access check in GradebookController. An unauthenticated attacker can call the set_default_certificate endpoint with any course and document id to change certificate settings for that course.","category":"package","nicknames":[],"who_cares":["chamilo","self-hosted","php","lms"],"confidence":0.6,"needs_auth":"no","worst_case":"Unauthenticated attacker changes certificate settings for any course","analyst_note":"Confirm the exact affected version range and whether a patch or advisory URL exists beyond the NVD entry; sources give no fix version detail beyond RC.3.","how_to_check":"- Check the installed Chamilo version in the application's version file or admin dashboard and see whether it falls in 2.0.0-alpha.1 through 2.0.0-RC.2.\n- Confirm whether the `set_default_certificate` route in GradebookController is reachable from the internet.","needs_analyst":true,"not_affected_if":["default-config"],"who_is_affected":"Sites running Chamilo LMS 2.0.0 pre-release builds from 2.0.0-alpha.1 up to but not including 2.0.0-RC.3 that expose the application to the internet or to untrusted users. Sites on stable 1.x releases or on RC.3 and later are not in the stated range.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000659,"input_tokens":3406,"output_tokens":636,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-114388':14A,17A '-2026':13A,16A '2.0.0':27B,32B,35B,69C,74C,77C 'access':40B,82C 'allow':88C 'alpha.1':33B,75C 'attack':46B,95C 'call':48B 'certif':8A,52B,62B,94C,101C,113C 'chamilo':1A,18B,25B,67C 'chang':6A,61B 'check':41B 'configur':114C 'contain':79C 'control':83C 'cours':11A,56B,66B,105C,117C 'cve':12A,15A 'default':51B,100C 'document':58B,108C 'endpoint':53B,102C 'gradebook':7A,93C 'gradebookcontrol':43B,86C 'host':24B 'id':59B,106C,109C 'lms':2A,19B,26B,68C 'miss':39B,81C 'modifi':92C 'packag':20B 'php':21B 'pre':29B,71C 'pre-releas':28B,70C 'rc.3':36B,78C 'releas':30B,72C 'request':97C 'self':23B 'self-host':22B 'set':50B,63B,99C 'tamper':111C 'unauthent':3A,45B,89C 'user':4A,90C 'vulner':84C","nicknames":[],"mitigations":[],"who_affected":"Sites running Chamilo LMS 2.0.0 pre-release builds from 2.0.0-alpha.1 up to but not including 2.0.0-RC.3 that expose the application to the internet or to untrusted users. Sites on stable 1.x releases or on RC.3 and later are not in the stated range.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-21T13:18:29+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","cvss_by":"disclosure@vulncheck.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-114388","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-114388","severity":null,"published_at":"2026-10-21T13:18:29+00:00","modified_at":"2026-10-22T17:40:46+00:00","first_seen_at":"2026-10-23T21:57:28+00:00","fetched_at":"2026-10-23T22:29:01+00:00","note":null},{"source":"epss","external_id":"CVE-2026-114388","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-114388","severity":null,"published_at":null,"modified_at":null,"first_seen_at":"2026-10-24T13:15:54+00:00","fetched_at":"2026-10-24T13:15:54+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}