{"id":"CVE-2026-111592","kind":"vulnerability","aliases":["CVE-2026-111592"],"related":[],"title":"PublishPress Authors WordPress plugin: stored script injection via author name","description":"The Co-Authors, Multiple Authors and Guest Authors in an Author Box with PublishPress Authors plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'name (maps to display_name)' parameter in all versions up to, and including, 4.17.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Exploitation requires the attacker's user account to have a mapped author term, which occurs when an administrator has assigned them as a co-author on content or has enabled automatic author term creation for their role — this mapping is not present by default for new users on a stock install.","summary":"The PublishPress Authors plugin for WordPress does not sanitize the author name field, so a logged-in subscriber can store a script in it. The script runs in the browser of anyone who opens a page showing that author box.","severity":"medium","cvss":6.4,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["package","publishpress-authors","wordpress"],"not_affected_if":["default-config","no-mapped-author-terms"],"how_to_check":"- Check the installed version of the PublishPress Authors plugin in the WordPress admin plugin list; the sources say versions up to and including `4.17.0` are affected\n- Look for the plugin's author term mapping: an account is only exposed if it has a mapped author term","fix":null,"status":"open","published_at":"2026-10-31T08:16:48+00:00","first_seen_at":"2026-10-31T08:34:28+00:00","triaged_at":"2026-10-31T08:35:13+00:00","updated_at":"2026-10-31T08:35:14+00:00","category":"package","confidence":0.7,"triage":{"at":"2026-10-31T08:35:13Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"internet","title":"PublishPress Authors WordPress plugin: stored script injection via author name","impact":"medium","summary":"The PublishPress Authors plugin for WordPress does not sanitize the author name field, so a logged-in subscriber can store a script in it. The script runs in the browser of anyone who opens a page showing that author box.","audience":"businesses","category":"package","nicknames":[],"who_cares":["wordpress","publishpress-authors"],"confidence":0.7,"fix_status":"unknown","needs_auth":"yes","worst_case":"Attacker script runs in visitors' browsers on the site","analyst_note":"","how_to_check":"- Check the installed version of the PublishPress Authors plugin in the WordPress admin plugin list; the sources say versions up to and including `4.17.0` are affected\n- Look for the plugin's author term mapping: an account is only exposed if it has a mapped author term\n- unknown for other checks","plain_action":"","needs_analyst":false,"not_affected_if":["default-config","no-mapped-author-terms"],"who_is_affected":"Sites running the PublishPress Authors plugin at version 4.17.0 or earlier, where a subscriber-level account has a mapped author term. The sources say this mapping is not present by default for new users on a stock install, so sites without co-author assignments or automatic author term creation for subscribers are less exposed. unknown for whether a fixed version exists.","user_interaction":"yes","needs_special_setup":"yes","severity_if_unknown":"medium"},"cost_usd":0.000695,"input_tokens":4286,"output_tokens":533,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-111592':13A,16A '-2026':12A,15A '4.17.0':105C 'access':125C,141C 'account':151C 'administr':162C 'anyon':54B 'arbitrari':130C 'assign':164C 'attack':120C,148C 'authent':119C 'author':2A,9A,20B,24B,32B,61B,66C,68C,71C,74C,78C,156C,170C,177C 'automat':176C 'box':62B,75C 'browser':52B 'co':65C,169C 'co-author':64C,168C 'content':172C 'creation':179C 'cross':87C 'cross-sit':86C 'cve':11A,14A 'default':189C 'display':95C 'due':106C 'enabl':175C 'escap':113C 'execut':137C 'exploit':145C 'field':34B 'guest':70C 'includ':104C 'inject':7A,129C,143C 'input':109C 'instal':196C 'insuffici':108C 'level':124C 'log':38B 'logged-in':37B 'make':115C 'map':93C,155C,184C 'multipl':67C 'name':10A,33B,92C,96C 'new':191C 'occur':159C 'open':56B 'output':112C 'packag':17B 'page':58B,134C,144C 'paramet':97C 'plugin':4A,25B,79C 'possibl':117C 'present':187C 'publishpress':1A,19B,23B,77C 'publishpress-author':18B 'requir':146C 'role':182C 'run':49B 'sanit':30B,110C 'script':6A,44B,48B,89C,132C 'show':59B 'site':88C 'stock':195C 'store':5A,42B,85C 'subscrib':40B,123C 'subscriber-level':122C 'term':157C,178C 'user':140C,150C,192C 'version':100C 'via':8A,90C 'vulner':83C 'web':131C 'whenev':138C 'wordpress':3A,21B,27B,81C","nicknames":[],"mitigations":[],"who_affected":"Sites running the PublishPress Authors plugin at version 4.17.0 or earlier, where a subscriber-level account has a mapped author term. The sources say this mapping is not present by default for new users on a stock install, so sites without co-author assignments or automatic author term creation for subscribers are less exposed. unknown for whether a fixed version exists.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"first_public_at":"2026-10-31T08:16:48+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/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-2026-111592","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-111592","severity":null,"published_at":"2026-10-31T08:16:48+00:00","modified_at":"2026-10-31T08:16:48+00:00","first_seen_at":"2026-10-31T08:34:28+00:00","fetched_at":"2026-10-31T08:34:28+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"}