The User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Avatar Field in all versions up to, and including, 4.0.2 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. This is exploitable via a nonce-free GET request to /wp-admin/profile.php, requiring no profile-form submission; a Subscriber can plant the malicious attachment URL, which then executes when an administrator opens that user's Edit User screen.
CVE-2026-93656
This medium-severity CVE scores 6.4 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit-prediction score not yet available (the EPSS model rescores nightly; freshly-published CVEs typically appear within 48 hours). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 6.4
- EG Score
- 6.4(low)
- EG Risk
- 33(Track)EG Risk 33/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity64% × 45%Exploitation0% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- —
- EPSS %ILE
- —
- KEV
- Not listed
Published
September 25, 2026
Last Modified
September 25, 2026
References (7)
- security@wordfencehttps://plugins.trac.wordpress.org/browser/profile-builder/tags/4.0.2/front-end/default-fields/avatar/avatar.php#L43
- security@wordfencehttps://plugins.trac.wordpress.org/browser/profile-builder/tags/4.0.2/front-end/default-fields/avatar/avatar.php#L67
- security@wordfencehttps://plugins.trac.wordpress.org/browser/profile-builder/tags/4.0.2/front-end/default-fields/avatar/avatar.php#L75
- security@wordfencehttps://plugins.trac.wordpress.org/browser/profile-builder/tags/4.0.2/front-end/default-fields/fields-functions.php#L30
- security@wordfencehttps://plugins.trac.wordpress.org/browser/profile-builder/tags/4.0.2/front-end/default-fields/upload/upload_helper_functions.php#L286
- security@wordfencehttps://plugins.trac.wordpress.org/changeset/3708665/profile-builder
- security@wordfencehttps://www.wordfence.com/threat-intel/vulnerabilities/id/4d4991ff-903a-410a-b472-1a5f76a32940?source=cve
Vendor Advisories for CVE-2026-93656(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 3× in last 7d / 3× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-09-25 08:27 UTCEG score recompute
- 2026-09-25 07:47 UTCEG score recompute
- 2026-09-25 07:46 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Frequently asked(4)
What is CVE-2026-93656?
When was CVE-2026-93656 disclosed?
What is the CVSS score of CVE-2026-93656?
How do I remediate CVE-2026-93656?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-93656
Is Your Infrastructure Affected by CVE-2026-93656?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.