CVE-2026-104003

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content \u2013 ProfilePress", "vendor": "properfraction", "versions": [{"lessThanOrEqual": "4.17.5", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "security@wordfence.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The WP User Avatar / ProfilePress plugin for WordPress is vulnerable to Arbitrary Shortcode Execution in versions up to, and including, 4.17.5. This is due to the get_user_profile_structure() function assembling the front-end profile buffer \u2014 which includes raw comment excerpts inlined by author_comment_query() \u2014 and passing the entire buffer to do_shortcode() after only a narrow neutralization pass (ppress_neutralize_buffer_shortcodes) that blocks pp-custom-html and bracket fragments containing HTML delimiters but leaves any other well-formed shortcode intact. This makes it possible for authenticated attackers, with Subscriber-level access and above, to inject arbitrary shortcodes (from any active plugin or theme) with attacker-chosen attributes by posting a comment whose body contains the shortcode markup; the shortcode is then executed server-side when any visitor loads the target's front-end profile Comments tab, letting the attacker reach capability-gated or data-returning shortcodes and inject raw HTML markup into a publicly viewable page."}], "id": "CVE-2026-104003", "lastModified": "2026-10-16T15:17:03.103", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 2.5, "source": "security@wordfence.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-104003", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-10-16T14:53:07.727463Z", "version": "2.0.3"}}]}, "published": "2026-10-16T09:17:03.843", "references": [{"source": "security@wordfence.com", "url": "https://pastebin.com/raw/pCgrW6Pf"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.17.5/src/Functions/GlobalFunctions.php#L1768"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.17.5/src/ShortcodeParser/Builder/FrontendProfileBuilder.php#L169"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.17.5/src/ShortcodeParser/FrontendProfileTag.php#L142"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.17.5/src/Themes/DragDrop/UserProfile/DefaultTemplate.php#L379"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.17.6/src/ShortcodeParser/FrontendProfileTag.php"}, {"source": "security@wordfence.com", "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/83adfbff-f625-4474-81b9-961c496d59a0?source=cve"}], "sourceIdentifier": "security@wordfence.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-94"}], "source": "security@wordfence.com", "type": "Secondary"}]}

{}

{"created": "2026-10-16T13:23:05.537842+00:00", "updated": "2026-10-16T13:41:33.741412+00:00", "vendors": []}