Answer in brief
CVE-2026-93755 records a High severity (CVSS 7.2) vulnerability in Happyforms Pro <= 1.38.9 - Unauthenticated Stored Cross-Site Scripting via Client-IP/X-Forwarded-For Header. The current sources do not mark it as known exploited. The current feed maps Happyforms/Happyforms Pro (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.2. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Happyforms/Happyforms Pro (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Happyforms/Happyforms Progeneric | >=0 <=1.38.9 | Not reported |
Published upstream
Nov 7, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 7, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 7, 2026
The Happyforms plugin for WordPress is vulnerable to Stored Cross-Site Scripting via spoofable client IP headers in versions up to, and including, 1.38.9. This is due to the happyforms_get_client_ip() function reading raw HTTP_CLIENT_IP and HTTP_X_FORWARDED_FOR request headers without any validation or sanitization, storing the value as post meta ('client_ip') via update_post_meta() during unauthenticated form submissions, and later echoing it in the admin submission edit screen's Details metabox without output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user (typically an administrator reviewing a submission) accesses an injected page.
Quoted source text, attributed separately from HOL analysis.