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4 vulnerabilities found for Happyforms Pro by Happyforms
CVE-2026-93766 (GCVE-0-2026-93766)
Vulnerability from nvd – Published: 2026-11-07 11:26 – Updated: 2026-11-07 18:06
VLAI
EPSS
VEX
Title
Happyforms Pro <= 1.38.9 - Unauthenticated Stored Cross-Site Scripting via 'happyforms_client_referer' Parameter
Summary
The Happyforms Pro plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'happyforms_client_referer' parameter in all versions up to, and including, 1.38.9 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Severity
7.2 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-07 17:59 UTC
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Happyforms | Happyforms Pro |
Affected:
0 , ≤ 1.38.9
(semver)
|
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CVE-2026-93755 (GCVE-0-2026-93755)
Vulnerability from nvd – Published: 2026-11-07 11:26 – Updated: 2026-11-07 18:06
VLAI
EPSS
VEX
Title
Happyforms Pro <= 1.38.9 - Unauthenticated Stored Cross-Site Scripting via Client-IP/X-Forwarded-For Header
Summary
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.
Severity
7.2 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-07 18:00 UTC
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Happyforms | Happyforms Pro |
Affected:
0 , ≤ 1.38.9
(semver)
|
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CVE-2026-93766 (GCVE-0-2026-93766)
Vulnerability from cvelistv5 – Published: 2026-11-07 11:26 – Updated: 2026-11-07 18:06
VLAI
EPSS
VEX
Title
Happyforms Pro <= 1.38.9 - Unauthenticated Stored Cross-Site Scripting via 'happyforms_client_referer' Parameter
Summary
The Happyforms Pro plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'happyforms_client_referer' parameter in all versions up to, and including, 1.38.9 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Severity
7.2 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-07 17:59 UTC
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Happyforms | Happyforms Pro |
Affected:
0 , ≤ 1.38.9
(semver)
|
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CVE-2026-93755 (GCVE-0-2026-93755)
Vulnerability from cvelistv5 – Published: 2026-11-07 11:26 – Updated: 2026-11-07 18:06
VLAI
EPSS
VEX
Title
Happyforms Pro <= 1.38.9 - Unauthenticated Stored Cross-Site Scripting via Client-IP/X-Forwarded-For Header
Summary
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.
Severity
7.2 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-07 18:00 UTC
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Happyforms | Happyforms Pro |
Affected:
0 , ≤ 1.38.9
(semver)
|
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