{"id":"CVE-2026-114570","kind":"vulnerability","aliases":["CVE-2026-114570"],"related":[],"title":"WordPress Core: display names let contributors plant scripts in admin screens","description":"WordPress Core is vulnerable to Stored Cross-Site Scripting via Quick Edit in all versions up to, and including, 7.0.2 due to insufficient escaping of user display names. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a higher privileged user accesses the affected administrative screens. This issue only affects sites with a large number of users.","summary":"WordPress Core up to and including 7.0.2 does not escape user display names in Quick Edit, so stored script can be saved. When a higher-privileged user opens the affected admin screens, the script runs in their browser.","severity":"medium","cvss":4.9,"epss":0.0018,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["multi-user-sites","runtime","self-hosted","wordpress"],"not_affected_if":["no-contributor-accounts","small-user-count"],"how_to_check":"- Check the WordPress version in the admin Dashboard or with `wp core version`\n- Count users on the site: sites with a large number of users are the ones the sources say are affected\n- unknown whether the sources name a specific setting or plugin condition beyond this","fix":"- Update WordPress Core to a release later than `7.0.2`, using the version named in the official WordPress security release notes\n- unknown whether the sources name the exact fixed version","status":"open","published_at":"2026-10-22T06:17:14+00:00","first_seen_at":"2026-10-23T21:57:30+00:00","triaged_at":"2026-10-25T04:31:06+00:00","updated_at":"2026-10-25T04:31:06+00:00","category":"runtime","confidence":0.6,"triage":{"at":"2026-10-25T04:31:06Z","model":"claude-haiku-5-5","output":{"fix":"- Update WordPress Core to a release later than `7.0.2`, using the version named in the official WordPress security release notes\n- unknown whether the sources name the exact fixed version","reach":"internet","title":"WordPress Core: display names let contributors plant scripts in admin screens","impact":"medium","summary":"WordPress Core up to and including 7.0.2 does not escape user display names in Quick Edit, so stored script can be saved. When a higher-privileged user opens the affected admin screens, the script runs in their browser.","category":"runtime","nicknames":[],"who_cares":["wordpress","self-hosted","multi-user-sites"],"confidence":0.6,"needs_auth":"yes","worst_case":"Stored script runs in a privileged admin's browser session","analyst_note":"Confirm the fixed WordPress Core version and the exact user-count condition from the WordPress security release notes or the NVD entry.","how_to_check":"- Check the WordPress version in the admin Dashboard or with `wp core version`\n- Count users on the site: sites with a large number of users are the ones the sources say are affected\n- unknown whether the sources name a specific setting or plugin condition beyond this","needs_analyst":true,"not_affected_if":["small-user-count","no-contributor-accounts"],"who_is_affected":"Sites running WordPress Core `7.0.2` or earlier with a large number of users, where Contributor-level or higher accounts exist. The attacker needs a logged-in Contributor account and an administrator or editor must then open the affected screens. Small sites with few users are stated as not affected.","user_interaction":"yes","needs_special_setup":"yes","severity_if_unknown":"medium"},"cost_usd":0.00063,"input_tokens":3410,"output_tokens":577,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-114570':14A,17A '-2026':13A,16A '7.0.2':33B,86C 'access':106C,124C 'admin':10A,58B 'administr':127C 'affect':57B,126C,132C 'arbitrari':111C 'attack':101C 'authent':100C 'browser':65B 'contributor':6A,104C 'contributor-level':103C 'core':2A,28B,67C 'cross':73C 'cross-sit':72C 'cve':12A,15A 'display':3A,38B,93C 'due':87C 'edit':42B,78C 'escap':36B,90C 'execut':118C 'higher':52B,121C 'higher-privileg':51B 'host':25B 'includ':32B,85C 'inject':110C 'insuffici':89C 'issu':130C 'larg':136C 'let':5A 'level':105C 'make':96C 'multi':19B 'multi-user-sit':18B 'name':4A,39B,94C 'number':137C 'open':55B 'page':115C 'plant':7A 'possibl':98C 'privileg':53B,122C 'quick':41B,77C 'run':62B 'runtim':22B 'save':48B 'screen':11A,59B,128C 'script':8A,45B,61B,75C,113C 'self':24B 'self-host':23B 'site':21B,74C,133C 'store':44B,71C 'user':20B,37B,54B,92C,123C,139C 'version':81C 'via':76C 'vulner':69C 'web':112C 'whenev':119C 'wordpress':1A,26B,27B,66C","nicknames":[],"mitigations":[],"who_affected":"Sites running WordPress Core `7.0.2` or earlier with a large number of users, where Contributor-level or higher accounts exist. The attacker needs a logged-in Contributor account and an administrator or editor must then open the affected screens. Small sites with few users are stated as not affected.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-22T06:17:14+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N","cvss_by":"security@wordfence.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-114570","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-114570","severity":null,"published_at":"2026-10-22T06:17:14+00:00","modified_at":"2026-10-22T19:17:37+00:00","first_seen_at":"2026-10-23T21:57:30+00:00","fetched_at":"2026-10-23T22:29:02+00:00","note":null},{"source":"epss","external_id":"CVE-2026-114570","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-114570","severity":null,"published_at":null,"modified_at":null,"first_seen_at":"2026-10-24T07:15:51+00:00","fetched_at":"2026-10-24T07:15:51+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"}