MEDIUMCVSS v3.1 5.4Vulnerability

CVE-2026-14556

The HappyForms WordPress plugin before 1.26.15 does not sanitise or escape a user-controlled referral value before embedding it in the form notification email, allowing unauthenticated attackers to inject arbitrary HTML into the emails site administrators receive.

Properties

Severity
MEDIUM
Nvd fetched at
2026-10-22T22:14:18.200859+00:00
Epss score
0.00155
Cvss severity
MEDIUM
Cvss score
5.4
Retrieved at
2026-10-22T22:17:33+00:00
Last source
FIRST EPSS
Score
5.4
Cvss version
3.1
Cve id
CVE-2026-14556
Cvss vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
First seen by Signal
2026-10-21T22:34:38+00:00
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Published at
2026-10-21T09:17:07.173
Last modified
2026-10-21T18:37:38.700
Epss percentile
0.04325

Related Entities (1)

HAS_WEAKNESS (1)

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CVE-2026-14556 (CVSS v3.1 5.4) — Ninja Signal Threat Intelligence | Ninja Signal