Dashboard / CVE-2026-115303

CVE-2026-115303

LOW
INFO Priority: 0.01 BB Relevance: 57/100
Published: 2026-10-29 Modified: 2026-10-29 First seen: 2026-10-29 Status: active

Attack Surface

Network No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: High
PR: None
UI: None
S: Unchanged
C: None
I: Low
A: None

Description

The Contact Form by Supsystic WordPress plugin before 1.11.1 does not strip CR/LF characters or re-validate submitted field values before concatenating them into outgoing email headers when a form is configured to map a submitted field into its Reply-To, From or Cc header, allowing unauthenticated users to inject arbitrary email headers such as additional Bcc or Cc recipients into the notification email.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
Unknown Contact Form by Supsystic 0 < 1.11.1
Unknown Contact Form by Supsystic 0 < 1.11.1

References & Advisories (1)

Bug Bounty Relevance

57 / 100
✓ Network accessible
✓ No authentication
✓ No user interaction

CVSS Score

3.7 / 10.0 v3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

EPSS — Exploitation Probability

0.22%
Raw Score 0.002240
Percentile 13.0%
Date 2026-10-29

Intelligence Sources

mitre ref →
nvd ref →

External Links