Low severity3.8NVD Advisory· Published Oct 19, 2026
CVE-2026-91831
CVE-2026-91831
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.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
1- Range: <2.3.3
Patches
Vulnerability mechanics
References
1News mentions
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