{"id":"CVE-2026-121998","kind":"vulnerability","aliases":["CVE-2026-121998"],"related":[],"title":"iChart WordPress plugin: low-privilege users can delete and modify any post","description":"The iChart  WordPress plugin before 2.2.4 does not perform capability or ownership checks in several of its AJAX actions, relying only on a nonce that any logged-in user can obtain, allowing users with a role as low as Subscriber to read, modify and permanently delete arbitrary posts and to overwrite a site-wide option.","summary":"The iChart WordPress plugin before 2.2.4 skips capability and ownership checks in several AJAX actions, so any logged-in user, including a Subscriber, can pass the nonce and act on that path. An attacker can read, change or permanently delete arbitrary posts and overwrite a site-wide option.","severity":"high","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[{"name":"iChart","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["ichart","package","wordpress"],"not_affected_if":["no-logged-in-users","plugin-not-installed"],"how_to_check":"- Check the installed iChart plugin version in the WordPress admin Plugins screen or in `wp-content/plugins/` (look for the plugin header version).\n- Check whether any Subscriber-level accounts exist on the site that are not trusted.","fix":"- iChart WordPress plugin: `2.2.4` (fixed in versions before 2.2.4 per the advisory range; move to 2.2.4 or later).","status":"open","published_at":"2026-11-11T06:17:17+00:00","first_seen_at":"2026-11-11T06:25:42+00:00","triaged_at":"2026-11-11T06:27:28+00:00","updated_at":"2026-11-11T06:27:28+00:00","category":"package","confidence":0.6,"triage":{"at":"2026-11-11T06:27:28Z","model":"claude-haiku-5-5","output":{"fix":"- iChart WordPress plugin: `2.2.4` (fixed in versions before 2.2.4 per the advisory range; move to 2.2.4 or later).","reach":"internet","title":"iChart WordPress plugin: low-privilege users can delete and modify any post","impact":"medium","summary":"The iChart WordPress plugin before 2.2.4 skips capability and ownership checks in several AJAX actions, so any logged-in user, including a Subscriber, can pass the nonce and act on that path. An attacker can read, change or permanently delete arbitrary posts and overwrite a site-wide option.","audience":"businesses","category":"package","nicknames":[],"who_cares":["wordpress","ichart"],"confidence":0.6,"fix_status":"available","needs_auth":"yes","worst_case":"Attacker deletes or rewrites posts and overwrites a site-wide option","analyst_note":"Confirm the affected version range and the fixed release from the plugin's WordPress.org page or the vendor advisory; NVD text alone gives only the 2.2.4 boundary.","how_to_check":"- Check the installed iChart plugin version in the WordPress admin Plugins screen or in `wp-content/plugins/` (look for the plugin header version).\n- Check whether any Subscriber-level accounts exist on the site that are not trusted.","plain_action":"","product_name":"iChart","needs_analyst":true,"not_affected_if":["plugin-not-installed","no-logged-in-users"],"who_is_affected":"Any WordPress site running the iChart plugin below 2.2.4 with user registration or any logged-in low-privilege accounts is exposed, because the AJAX actions accept any logged-in user. Sites where the plugin is absent or where only administrators can log in can skip it.","user_interaction":"no","product_ecosystem":"vendor","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000784,"input_tokens":4557,"output_tokens":657,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-121998':16A,19A '-2026':15A,18A '2.2.4':29B,79C 'act':53B 'action':38B,92C 'ajax':37B,91C 'allow':106C 'arbitrari':65B,121C 'attack':58B 'capabl':31B,83C 'chang':61B 'check':34B,86C 'cve':14A,17A 'delet':9A,64B,120C 'ichart':1A,20A,21B,25B,75C 'includ':45B 'log':42B,101C 'logged-in':41B,100C 'low':5A,112C 'low-privileg':4A 'modifi':11A,117C 'nonc':51B,97C 'obtain':105C 'option':73B,130C 'overwrit':68B,125C 'ownership':33B,85C 'packag':22B 'pass':49B 'path':56B 'perform':82C 'perman':63B,119C 'plugin':3A,27B,77C 'post':13A,66B,122C 'privileg':6A 'read':60B,116C 'reli':93C 'role':110C 'sever':36B,88C 'site':71B,128C 'site-wid':70B,127C 'skip':30B 'subscrib':47B,114C 'user':7A,44B,103C,107C 'wide':72B,129C 'wordpress':2A,23B,26B,76C","nicknames":[],"mitigations":[],"who_affected":"Any WordPress site running the iChart plugin below 2.2.4 with user registration or any logged-in low-privilege accounts is exposed, because the AJAX actions accept any logged-in user. Sites where the plugin is absent or where only administrators can log in can skip it.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"businesses","plain_action":null,"pkeys":["ichart"],"ptokens":["ichart"],"labels":["high","ichart","package","vendor","wordpress"],"campaign_type":null,"search_a":"'-121998':16A,19A '-2026':15A,18A 'cve':14A,17A 'delet':9A 'ichart':1A,20A 'low':5A 'low-privileg':4A 'modifi':11A 'plugin':3A 'post':13A 'privileg':6A 'user':7A 'wordpress':2A","search_b":"'2.2.4':29B 'act':53B 'action':38B 'ajax':37B 'arbitrari':65B 'attack':58B 'capabl':31B 'chang':61B 'check':34B 'delet':64B 'ichart':21B,25B 'includ':45B 'log':42B 'logged-in':41B 'nonc':51B 'option':73B 'overwrit':68B 'ownership':33B 'packag':22B 'pass':49B 'path':56B 'perman':63B 'plugin':27B 'post':66B 'read':60B 'sever':36B 'site':71B 'site-wid':70B 'skip':30B 'subscrib':47B 'user':44B 'wide':72B 'wordpress':23B,26B","search_c":"'2.2.4':79C 'action':92C 'ajax':91C 'allow':106C 'arbitrari':121C 'capabl':83C 'check':86C 'delet':120C 'ichart':75C 'log':101C 'logged-in':100C 'low':112C 'modifi':117C 'nonc':97C 'obtain':105C 'option':130C 'overwrit':125C 'ownership':85C 'perform':82C 'perman':119C 'plugin':77C 'post':122C 'read':116C 'reli':93C 'role':110C 'sever':88C 'site':128C 'site-wid':127C 'subscrib':114C 'user':103C,107C 'wide':129C 'wordpress':76C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-11T06:17:17+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-121998","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-121998","severity":null,"published_at":"2026-11-11T06:17:17+00:00","modified_at":"2026-11-11T06:17:17+00:00","first_seen_at":"2026-11-11T06:25:42+00:00","fetched_at":"2026-11-11T06:25:42+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"}