{"id":"CVE-2026-5700","kind":"vulnerability","aliases":["CVE-2026-5700"],"related":[],"title":"SABBATIC application: stored XSS via observaciones field on /mis-gastos","description":"Stored Cross-Site Scripting (XSS) vulnerability in SABBATIC application that allows an attacker to store JavaScript code so that when a user views the page, code can be executed in the victim's browser. The list of assigned parameters and identifiers is as follows: \nparameter 'observaciones' in  /mis-gastos  endpoint.","summary":"The SABBATIC web application does not sanitize the 'observaciones' parameter on its /mis-gastos endpoint, so stored input is saved and later rendered. An attacker can plant JavaScript that runs in the browser of any user who views that page.","severity":"medium","cvss":4.8,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["other","sabbatic","web-app"],"not_affected_if":["unknown"],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-10-29T12:17:13+00:00","first_seen_at":"2026-10-29T12:24:38+00:00","triaged_at":"2026-10-29T12:25:41+00:00","updated_at":"2026-10-29T12:25:41+00:00","category":"other","confidence":0.4,"triage":{"at":"2026-10-29T12:25:41Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"internet","title":"SABBATIC application: stored XSS via observaciones field on /mis-gastos","impact":"medium","summary":"The SABBATIC web application does not sanitize the 'observaciones' parameter on its /mis-gastos endpoint, so stored input is saved and later rendered. An attacker can plant JavaScript that runs in the browser of any user who views that page.","audience":"businesses","category":"other","nicknames":[],"who_cares":["sabbatic","web-app"],"confidence":0.4,"fix_status":"unknown","needs_auth":"unknown","worst_case":"script runs in victims' browsers, session data stolen","analyst_note":"Find the affected SABBATIC versions and whether the vendor or a patch exists; check the NVD entry at https://nvd.nist.gov/vuln/detail/CVE-2026-5700.","how_to_check":"- unknown","plain_action":"","needs_analyst":true,"not_affected_if":["unknown"],"who_is_affected":"Teams that run the SABBATIC application and expose the /mis-gastos page to users who can write to the 'observaciones' field. The sources do not name affected versions or say whether the page is reachable without login. unknown","user_interaction":"yes","needs_special_setup":"unknown","severity_if_unknown":"unknown"},"cost_usd":0.000646,"input_tokens":4148,"output_tokens":462,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-2026':11A,14A '-5700':12A,15A '/mis-gastos':9A,33B,108C 'allow':71C 'app':20B 'applic':2A,24B,69C 'assign':98C 'attack':44B,73C 'browser':52B,94C 'code':77C,86C 'cross':62C 'cross-sit':61C 'cve':10A,13A 'endpoint':34B,109C 'execut':89C 'field':7A 'follow':104C 'identifi':101C 'input':37B 'javascript':47B,76C 'later':41B 'list':96C 'observacion':6A,29B,106C 'page':59B,85C 'paramet':30B,99C,105C 'plant':46B 'render':42B 'run':49B 'sabbat':1A,17B,22B,68C 'sanit':27B 'save':39B 'script':64C 'site':63C 'store':3A,36B,60C,75C 'user':55B,82C 'via':5A 'victim':92C 'view':57B,83C 'vulner':66C 'web':19B,23B 'web-app':18B 'xss':4A,65C","nicknames":[],"mitigations":[],"who_affected":"Teams that run the SABBATIC application and expose the /mis-gastos page to users who can write to the 'observaciones' field. The sources do not name affected versions or say whether the page is reachable without login. unknown","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"first_public_at":"2026-10-29T12:17:13+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/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":"cve-coordination@incibe.es","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-5700","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-5700","severity":null,"published_at":"2026-10-29T12:17:13+00:00","modified_at":"2026-10-29T12:17:13+00:00","first_seen_at":"2026-10-29T12:24:38+00:00","fetched_at":"2026-10-29T12:24:38+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"}