{"id":"CVE-2026-117532","kind":"vulnerability","aliases":["CVE-2026-117532"],"related":[],"title":"REDAXO CMS: structure/history plugin flaw lets attackers forge login tokens","description":"REDAXO core from 5.3.0 before 5.21.4 contains an authentication bypass vulnerability in the structure/history plugin that allows unauthenticated attackers to forge temporary login tokens. Attackers can force the session-tied secret into a predictable state and forge tokens for accounts like admin, gaining backend access and code execution outside live mode.","summary":"REDAXO core versions from 5.3.0 before 5.21.4 have an authentication bypass in the structure/history plugin. An unauthenticated attacker can forge temporary login tokens for accounts such as admin, which gives backend access and code execution.","severity":"critical","cvss":9.8,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["cms","php","redaxo","runtime","self-hosted"],"not_affected_if":["core-5.21.4-or-later"],"how_to_check":"- Check the installed REDAXO core version in the backend or in `redaxo/src/core/boot.php`; unknown if the sources give another location\n- Look for the structure/history plugin in the addons directory; unknown if the sources name the exact path","fix":"- Upgrade REDAXO core to `5.21.4` or later\n- Rotate backend admin passwords and review admin accounts after upgrading, since forged tokens may already have been used","status":"open","published_at":"2026-10-27T11:17:33+00:00","first_seen_at":"2026-10-27T11:31:28+00:00","triaged_at":"2026-10-27T11:31:37+00:00","updated_at":"2026-10-27T11:31:37+00:00","category":"runtime","confidence":0.6,"triage":{"at":"2026-10-27T11:31:37Z","model":"claude-haiku-5-5","output":{"fix":"- Upgrade REDAXO core to `5.21.4` or later\n- Rotate backend admin passwords and review admin accounts after upgrading, since forged tokens may already have been used","reach":"internet","title":"REDAXO CMS: structure/history plugin flaw lets attackers forge login tokens","impact":"high","summary":"REDAXO core versions from 5.3.0 before 5.21.4 have an authentication bypass in the structure/history plugin. An unauthenticated attacker can forge temporary login tokens for accounts such as admin, which gives backend access and code execution.","category":"runtime","nicknames":[],"who_cares":["redaxo","php","self-hosted","cms"],"confidence":0.6,"needs_auth":"no","worst_case":"Unauthenticated attacker gets admin backend access and runs code on the server","analyst_note":"Confirm whether structure/history is enabled by default and check the NVD entry and REDAXO release notes for the exact fixed version and a check method.","how_to_check":"- Check the installed REDAXO core version in the backend or in `redaxo/src/core/boot.php`; unknown if the sources give another location\n- Look for the structure/history plugin in the addons directory; unknown if the sources name the exact path","needs_analyst":true,"not_affected_if":["core-5.21.4-or-later"],"who_is_affected":"REDAXO installations running core from 5.3.0 up to but not including 5.21.4 with the structure/history plugin present are exposed. Sites that have already upgraded to 5.21.4 or later are not affected; the sources do not say whether the plugin is off by default.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"critical"},"cost_usd":0.000631,"input_tokens":3343,"output_tokens":593,"severity_before":"critical"},"analyst_status":null,"analyst_note":null,"search":"'-117532':13A,16A '-2026':12A,15A '5.21.4':30B,64C '5.3.0':28B,62C 'access':55B,104C 'account':48B,99C 'admin':51B,101C 'allow':75C 'attack':7A,41B,77C,83C 'authent':33B,67C 'backend':54B,103C 'bypass':34B,68C 'cms':2A,17B 'code':57B,106C 'contain':65C 'core':25B,60C 'cve':11A,14A 'execut':58B,107C 'flaw':5A 'forc':85C 'forg':8A,43B,79C,96C 'gain':102C 'give':53B 'host':23B 'let':6A 'like':100C 'live':109C 'login':9A,45B,81C 'mode':110C 'outsid':108C 'php':18B 'plugin':4A,38B,73C 'predict':93C 'redaxo':1A,19B,24B,59C 'runtim':20B 'secret':90C 'self':22B 'self-host':21B 'session':88C 'session-ti':87C 'state':94C 'structure/history':3A,37B,72C 'temporari':44B,80C 'tie':89C 'token':10A,46B,82C,97C 'unauthent':40B,76C 'version':26B 'vulner':69C","nicknames":[],"mitigations":[],"who_affected":"REDAXO installations running core from 5.3.0 up to but not including 5.21.4 with the structure/history plugin present are exposed. Sites that have already upgraded to 5.21.4 or later are not affected; the sources do not say whether the plugin is off by default.","tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-27T11:17:33+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/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-2026-117532","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-117532","severity":null,"published_at":"2026-10-27T11:17:33+00:00","modified_at":"2026-10-27T11:17:33+00:00","first_seen_at":"2026-10-27T11:31:28+00:00","fetched_at":"2026-10-27T11:31:28+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"}