{"id":"CVE-2025-49113","kind":"vulnerability","aliases":["CVE-2025-49113"],"related":[],"title":"Roundcube Webmail before 1.5.10 and 1.6.x before 1.6.11 allows remote code execution by authenticated users because…","description":"RoundCube Webmail contains a deserialization of untrusted data vulnerability that allows remote code execution by authenticated users because the _from parameter in a URL is not validated in program/actions/settings/upload.php.\n\nCISA required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","summary":"Roundcube Webmail has a deserialization flaw in its settings upload handler: the _from URL parameter is not validated in program/actions/settings/upload.php. An attacker with a logged-in account can run code on the mail server.","severity":"critical","cvss":9.9,"epss":null,"exploited":true,"exploited_at":"2026-02-20T00:00:00+00:00","products":[{"name":"roundcube webmail","fixed":["1.5.10"],"affected":"< 1.5.10","ecosystem":"vendor"},{"name":"roundcube webmail","fixed":["1.6.11"],"affected":">= 1.6.0, < 1.6.11","ecosystem":"vendor"},{"name":"debian linux","fixed":[],"affected":"= 11.0","ecosystem":"vendor"},{"name":"Roundcube Webmail","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["exploited","package","roundcube","self-hosted","webmail"],"not_affected_if":["auth-required","managed-hosting"],"how_to_check":null,"fix":null,"status":"open","published_at":"2025-06-02T05:15:53+00:00","first_seen_at":"2026-10-23T19:11:51+00:00","triaged_at":"2026-10-23T20:42:11+00:00","updated_at":"2026-10-24T00:09:50+00:00","category":"package","confidence":0.7,"triage":{"at":"2026-10-23T20:42:11Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"internet","summary":"Roundcube Webmail has a deserialization flaw in its settings upload handler: the _from URL parameter is not validated in program/actions/settings/upload.php. An attacker with a logged-in account can run code on the mail server.","category":"package","who_cares":["roundcube","self-hosted","webmail"],"confidence":0.7,"needs_auth":"yes","worst_case":"Authenticated user runs arbitrary code on the webmail server, reading mail and secrets.","analyst_note":"Sources do not name affected or fixed Roundcube versions; check the vendor advisory and CISA KEV entry for version ranges and the patch or mitigation to apply.","how_to_check":"unknown","needs_analyst":true,"not_affected_if":["managed-hosting","auth-required"],"user_interaction":"unknown","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000417,"input_tokens":2555,"output_tokens":323,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-01':114C '-2025':18A,21A '-49113':19A,22A '1.5.10':4A '1.6':6A '1.6.11':9A '22':113C 'account':65B 'action':104C 'allow':10A,83C 'appli':105C 'applic':111C 'attack':59B 'authent':15A,88C 'bod':112C 'cisa':102C 'cloud':117C 'code':12A,68B,85C 'contain':75C 'cve':17A,20A 'data':80C 'debian':27A 'deseri':42B,77C 'discontinu':120C 'execut':13A,86C 'exploit':31B 'flaw':43B 'follow':110C 'guidanc':115C 'handler':48B 'host':36B 'instruct':109C 'linux':28A 'log':63B 'logged-in':62B 'mail':71B 'mitig':106C,126C 'packag':32B 'paramet':52B,93C 'per':107C 'product':124C 'program/actions/settings/upload.php':57B,101C 'remot':11A,84C 'requir':103C 'roundcub':1A,33B,38B,73C 'roundcube':23A,25A,29A 'run':67B 'self':35B 'self-host':34B 'server':72B 'servic':118C 'set':46B 'unavail':128C 'untrust':79C 'upload':47B 'url':51B,96C 'use':121C 'user':16A,89C 'valid':55B,99C 'vendor':108C 'vulner':81C 'webmail':2A,24A,26A,30A,37B,39B,74C 'x':7A","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2025-06-02T05:15:53+00:00","kev":{"dateAdded":"2026-02-20","dueDate":"2026-03-13","requiredAction":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","knownRansomwareCampaignUse":"Unknown"},"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","cvss_by":"cve@mitre.org","poc_count":0,"sources":[{"source":"kev","external_id":"CVE-2025-49113","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2025-49113","severity":null,"published_at":"2026-02-20T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:51+00:00","fetched_at":"2026-10-25T14:39:38+00:00","note":null},{"source":"nvd","external_id":"CVE-2025-49113","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-49113","severity":null,"published_at":"2025-06-02T05:15:53+00:00","modified_at":"2026-06-17T09:30:47+00:00","first_seen_at":"2026-10-23T23:44:51+00:00","fetched_at":"2026-10-23T23:44:51+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"}