{"id":"CVE-2026-116896","kind":"vulnerability","aliases":["CVE-2026-116896"],"related":[],"title":"REDAXO: backup addon exports any table, exposing admin sessions and password hashes","description":"REDAXO before 5.21.5 contains a missing authorization vulnerability in the backup addon export that accepts any database table, allowing non-admin users with the backup[export] permission to export rex_user, rex_user_session, and other applications' tables. Attackers can obtain plaintext session ids and stay-logged-in keys to take over admin accounts, or password hashes for offline cracking.","summary":"The REDAXO backup addon lets users with the backup[export] permission export any database table, including rex_user and rex_user_session. An attacker with that permission can read plaintext session IDs to take over admin accounts, or password hashes to crack offline.","severity":"high","cvss":7.7,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["package","php","redaxo","self-hosted"],"not_affected_if":["default-config","no-backup-addon"],"how_to_check":"- Check the installed REDAXO version in the project (`redaxo/src/core/boot.php` or the version shown in the backend) and confirm whether it is below `5.21.5`.\n- Check whether the backup addon is installed and which roles hold the `backup[export]` permission in the backend user/role settings.","fix":"- Upgrade REDAXO to `5.21.5` or later.\n- Until upgraded, remove the `backup[export]` permission from non-admin roles.","status":"open","published_at":"2026-10-27T11:17:32+00:00","first_seen_at":"2026-10-27T11:31:27+00:00","triaged_at":"2026-10-27T11:31:45+00:00","updated_at":"2026-10-27T11:31:45+00:00","category":"package","confidence":0.7,"triage":{"at":"2026-10-27T11:31:45Z","model":"claude-haiku-5-5","output":{"fix":"- Upgrade REDAXO to `5.21.5` or later.\n- Until upgraded, remove the `backup[export]` permission from non-admin roles.","reach":"internet","title":"REDAXO: backup addon exports any table, exposing admin sessions and password hashes","impact":"high","summary":"The REDAXO backup addon lets users with the backup[export] permission export any database table, including rex_user and rex_user_session. An attacker with that permission can read plaintext session IDs to take over admin accounts, or password hashes to crack offline.","category":"package","nicknames":[],"who_cares":["redaxo","self-hosted","php"],"confidence":0.7,"needs_auth":"yes","worst_case":"Attacker reads session IDs and password hashes, takes over admin accounts","analyst_note":"Sources list only NVD; confirm the fixed version and whether the backup addon is bundled by default, and check the REDAXO release notes for the 5.21.5 changelog.","how_to_check":"- Check the installed REDAXO version in the project (`redaxo/src/core/boot.php` or the version shown in the backend) and confirm whether it is below `5.21.5`.\n- Check whether the backup addon is installed and which roles hold the `backup[export]` permission in the backend user/role settings.","needs_analyst":true,"not_affected_if":["default-config","no-backup-addon"],"who_is_affected":"Sites running REDAXO before `5.21.5` with the backup addon installed and at least one non-admin user or role granted the backup[export] permission. Sites without the backup addon or with no non-admin users holding that permission are less exposed. unknown whether the sources list any further conditions.","user_interaction":"no","needs_special_setup":"yes","severity_if_unknown":"high"},"cost_usd":0.000638,"input_tokens":3344,"output_tokens":608,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-116896':15A,18A '-2026':14A,17A '5.21.5':70C 'accept':82C 'account':61B,123C 'addon':3A,28B,79C 'admin':8A,60B,89C,122C 'allow':86C 'applic':105C 'attack':48B,107C 'author':74C 'backup':2A,27B,33B,78C,93C 'contain':71C 'crack':66B,129C 'cve':13A,16A 'databas':38B,84C 'export':4A,34B,36B,80C,94C,97C 'expos':7A 'hash':12A,64B,126C 'host':24B 'id':56B,112C 'includ':40B 'key':118C 'let':29B 'log':116C 'miss':73C 'non':88C 'non-admin':87C 'obtain':109C 'offlin':67B,128C 'packag':19B 'password':11A,63B,125C 'permiss':35B,51B,95C 'php':20B 'plaintext':54B,110C 'read':53B 'redaxo':1A,21B,26B,68C 'rex':41B,44B,98C,100C 'self':23B 'self-host':22B 'session':9A,46B,55B,102C,111C 'stay':115C 'stay-logged-in':114C 'tabl':6A,39B,85C,106C 'take':58B,120C 'user':30B,42B,45B,90C,99C,101C 'vulner':75C","nicknames":[],"mitigations":[],"who_affected":"Sites running REDAXO before `5.21.5` with the backup addon installed and at least one non-admin user or role granted the backup[export] permission. Sites without the backup addon or with no non-admin users holding that permission are less exposed. unknown whether the sources list any further conditions.","tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-27T11:17:32+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/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-2026-116896","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-116896","severity":null,"published_at":"2026-10-27T11:17:32+00:00","modified_at":"2026-10-27T11:17:32+00:00","first_seen_at":"2026-10-27T11:31:27+00:00","fetched_at":"2026-10-27T11:31:27+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"}