CVE-2026-91831

Published: Oct 19, 2026Modified: Oct 19, 2026Deferred

3.8

Vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N

Exploitability: 1.2 / Impact: 2.5

Source: contact@wpscan.com (Secondary)

Description

The Subscribe to Comments WordPress plugin before 2.3.3 does not sanitise newline characters from a notification sender-name setting before using it in e-mail headers, allowing users with Author-level access and above to inject arbitrary e-mail headers, such as a hidden Bcc, and to spoof the sender.

Related CWEs

CWE-93

Improper Neutralization of CRLF Sequences ('CRLF Injection')

The product uses CRLF (carriage return line feeds) as a special element, e.g. to separate lines or records, but it does not neutralize or incorrectly neutralizes CRLF sequences from inputs.

References (1)

https://wpscan.com/vulnerability/6cd60f78-f5e2-4b4a-8d50-7d2bc4f981ee/

Source: contact@wpscan.com

Timeline

No history available yet.