{"id":"CVE-2026-124691","kind":"vulnerability","aliases":["CVE-2026-124691"],"related":[],"title":"Kendo UI for jQuery Gantt: task titles run as HTML in editor","description":"In Progress Kendo UI for jQuery Gantt, the task editor's Parent dropdown renders task titles as HTML. An attacker who can influence a task title shown in the dropdown can cause attacker-controlled markup to execute as JavaScript when a user opens or interacts with the task editor. Successful exploitation may compromise the confidentiality and integrity of data available in the user's browser context. The first affected version is 2020.3.915; the latest vulnerable version is 2026.3.1015. The issue is fixed in version 2026.4.1111.","summary":"The Parent dropdown in the Gantt task editor renders task titles as raw HTML instead of text. An attacker who can set a task title can make script run in the browser of a user who opens the task editor, exposing data in that browser session.","severity":"high","cvss":7.1,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["frontend","gantt","jquery","kendo-ui","package"],"not_affected_if":["no-gantt-widget","titles-not-user-controlled"],"how_to_check":"- Check the installed Kendo UI for jQuery version in your package manifest or lockfile, for example `npm ls @progress/kendo-ui` or `npm ls @progress/kendo-ui-for-jquery`.\n- Confirm whether the app uses the Gantt widget with the task editor's Parent dropdown.","fix":"- Kendo UI for jQuery Gantt: move to `2026.4.1111` or later.","status":"open","published_at":"2026-11-12T17:17:30+00:00","first_seen_at":"2026-11-12T17:39:37+00:00","triaged_at":"2026-11-12T17:39:58+00:00","updated_at":"2026-11-12T17:39:58+00:00","category":"package","confidence":0.6,"triage":{"at":"2026-11-12T17:39:58Z","model":"claude-haiku-5-5","output":{"fix":"- Kendo UI for jQuery Gantt: move to `2026.4.1111` or later.","reach":"internet","title":"Kendo UI for jQuery Gantt: task titles run as HTML in editor","impact":"medium","summary":"The Parent dropdown in the Gantt task editor renders task titles as raw HTML instead of text. An attacker who can set a task title can make script run in the browser of a user who opens the task editor, exposing data in that browser session.","audience":"developers","category":"package","nicknames":[],"who_cares":["kendo-ui","jquery","gantt","frontend"],"confidence":0.6,"fix_status":"available","needs_auth":"unknown","worst_case":"Attacker script runs in user browser, reading or altering session data","analyst_note":"sources only the NVD entry; the product's own advisory was not checked for the attack requirements.","how_to_check":"- Check the installed Kendo UI for jQuery version in your package manifest or lockfile, for example `npm ls @progress/kendo-ui` or `npm ls @progress/kendo-ui-for-jquery`.\n- Confirm whether the app uses the Gantt widget with the task editor's Parent dropdown.","plain_action":"","product_name":"","needs_analyst":false,"not_affected_if":["no-gantt-widget","titles-not-user-controlled"],"who_is_affected":"Applications that use the Kendo UI for jQuery Gantt widget with its task editor, where users or other parties can influence task titles. Versions from `2020.3.915` through `2026.3.1015` are vulnerable. Apps that do not use the Gantt widget are not exposed.","user_interaction":"yes","product_ecosystem":"","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000762,"input_tokens":4636,"output_tokens":596,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-124691':15A,18A '-2026':14A,17A '2020.3.915':144C '2026.3.1015':150C '2026.4.1111':157C 'affect':141C 'attack':44B,91C,105C 'attacker-control':104C 'avail':132C 'browser':57B,70B,137C 'caus':103C 'compromis':125C 'confidenti':127C 'context':138C 'control':106C 'cve':13A,16A 'data':67B,131C 'dropdown':28B,84C,101C 'editor':12A,33B,65B,81C,121C 'execut':109C 'exploit':123C 'expos':66B 'first':140C 'fix':154C 'frontend':19B 'gantt':5A,20B,31B,78C 'html':10A,39B,89C 'influenc':94C 'instead':40B 'integr':129C 'interact':117C 'issu':152C 'javascript':111C 'jqueri':4A,21B,77C 'kendo':1A,23B,74C 'kendo-ui':22B 'latest':146C 'make':52B 'markup':107C 'may':124C 'open':62B,115C 'packag':25B 'parent':27B,83C 'progress':73C 'raw':38B 'render':34B,85C 'run':8A,54B 'script':53B 'session':71B 'set':47B 'shown':98C 'success':122C 'task':6A,32B,35B,49B,64B,80C,86C,96C,120C 'text':42B 'titl':7A,36B,50B,87C,97C 'ui':2A,24B,75C 'user':60B,114C,135C 'version':142C,148C,156C 'vulner':147C","nicknames":[],"mitigations":[],"who_affected":"Applications that use the Kendo UI for jQuery Gantt widget with its task editor, where users or other parties can influence task titles. Versions from `2020.3.915` through `2026.3.1015` are vulnerable. Apps that do not use the Gantt widget are not exposed.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"developers","plain_action":null,"pkeys":[],"ptokens":[],"labels":["frontend","gantt","high","jquery","kendoui","package"],"campaign_type":null,"search_a":"'-124691':15A,18A '-2026':14A,17A 'cve':13A,16A 'editor':12A 'gantt':5A 'html':10A 'jqueri':4A 'kendo':1A 'run':8A 'task':6A 'titl':7A 'ui':2A","search_b":"'attack':44B 'browser':57B,70B 'data':67B 'dropdown':28B 'editor':33B,65B 'expos':66B 'frontend':19B 'gantt':20B,31B 'html':39B 'instead':40B 'jqueri':21B 'kendo':23B 'kendo-ui':22B 'make':52B 'open':62B 'packag':25B 'parent':27B 'raw':38B 'render':34B 'run':54B 'script':53B 'session':71B 'set':47B 'task':32B,35B,49B,64B 'text':42B 'titl':36B,50B 'ui':24B 'user':60B","search_c":"'2020.3.915':144C '2026.3.1015':150C '2026.4.1111':157C 'affect':141C 'attack':91C,105C 'attacker-control':104C 'avail':132C 'browser':137C 'caus':103C 'compromis':125C 'confidenti':127C 'context':138C 'control':106C 'data':131C 'dropdown':84C,101C 'editor':81C,121C 'execut':109C 'exploit':123C 'first':140C 'fix':154C 'gantt':78C 'html':89C 'influenc':94C 'integr':129C 'interact':117C 'issu':152C 'javascript':111C 'jqueri':77C 'kendo':74C 'latest':146C 'markup':107C 'may':124C 'open':115C 'parent':83C 'progress':73C 'render':85C 'shown':98C 'success':122C 'task':80C,86C,96C,120C 'titl':87C,97C 'ui':75C 'user':114C,135C 'version':142C,148C,156C 'vulner':147C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-12T17:17:30+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L","cvss_by":"security@progress.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-124691","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-124691","severity":null,"published_at":"2026-11-12T17:17:30+00:00","modified_at":"2026-11-12T17:17:30+00:00","first_seen_at":"2026-11-12T17:39:37+00:00","fetched_at":"2026-11-12T17:39:37+00:00","note":null}],"documents":[],"disclosures":[],"exploit_sources":[],"notice":"Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai"}