{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-15826 exists.","fix":"No fix has been published for CVE-2026-15826 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-15826 is a critical authentication bypass vulnerability in cozmoslabs User Profile Builder – Beautiful User Registration Forms, User Profiles \u0026 User Role Editor, published on 15 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-15826 and fix it if it is affected.\n\nWhat it is: CVE-2026-15826 is a critical authentication bypass vulnerability in cozmoslabs User Profile Builder – Beautiful User Registration Forms, User Profiles \u0026 User Role Editor, published on 15 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-15826 exists.\n\nAffected product: cozmoslabs User Profile Builder – Beautiful User Registration Forms, User Profiles \u0026 User Role Editor. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-15826/ (Markdown: https://insights.sbomify.com/CVE-2026-15826/index.md)","id":"CVE-2026-15826","markdown":"https://insights.sbomify.com/CVE-2026-15826/index.md","name":"CVE-2026-15826","record":{"aliases":["GHSA-2v77-3rr8-9p3p"],"analysis":{"component_type":"cms_plugin","fix_type":"upgrade","impacts":["account_takeover","privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"WordPress plugin","requires_auth":"none","summary":"Unauthenticated attackers can bypass authentication via type confusion to gain administrator access and take over the WordPress site.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Wordfence","cpe":[],"cvss":{"score":9.8,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-704","name":"Incorrect Type Conversion or Cast"}],"description":"The User Profile Builder plugin for WordPress is vulnerable to Authentication Bypass via Type Confusion in versions up to, and including, 3.16.4. This is due to the wppb_log_in_user() function calling absint() on the return value of wp_insert_user() before performing an is_wp_error() check — when a registration is submitted with a 61–70 character username, WordPress core rejects it with a WP_Error object, but absint() coerces that object to the integer 1 before the error check can short-circuit execution, causing the plugin to bind and return a transient-backed autologin nonce tied to user ID 1. This makes it possible for unauthenticated attackers to log in as the site's Administrator account (user ID 1), resulting in full administrative takeover of the site.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2026-08-17","github_poc":1,"max_poc_stars":0,"metasploit":0,"nuclei":1,"refs":[{"date":"2026-08-17T23:20:31Z","kind":"github_poc","ref":"https://github.com/HORKimhab/CVE-2026-15826-CVE-2026-15748","stars":0,"title":"CVE-2026-15826, CVE-2026-15748"},{"date":null,"kind":"nuclei","ref":"http/cves/2026/CVE-2026-15826.yaml","stars":null,"title":"User Profile Builder 3.16.4 - Unauthenticated Authentication Bypass"}],"tier":"weaponised"},"has_fix":null,"headline":"Auth bypass in User Profile Builder – Beautiful User Registration Forms, User Profiles \u0026 User Role Editor","id":"CVE-2026-15826","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2026"},"n_packages":0,"n_references":9,"next":{"headline":"Missing authorization in GutenKit – Page Builder Blocks, Patterns, and Templates for Gutenberg Block Editor","id":"CVE-2026-15827"},"packages":[],"prev":{"headline":"IBM DataPower Gateway Denial of Service","id":"CVE-2026-15824"},"products":["User Profile Builder – Beautiful User Registration Forms, User Profiles \u0026 User Role Editor"],"published":"2026-08-15","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"attribution","licence":"MIT","name":"Nuclei templates"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-08-17","vendors":["cozmoslabs"]},"summary":"Unauthenticated attackers can bypass authentication via type confusion to gain administrator access and take over the WordPress site.","url":"https://insights.sbomify.com/CVE-2026-15826/"}