CVE-2026-81290: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Icegram Email Subscribers & Newsletters

CVE-2026-81290 is an unauthenticated cross-site scripting (XSS) vulnerability in Icegram's Email Subscribers & Newsletters plugin versions up to 5.9.33. The vulnerability arises from improper neutralization of input during web page generation (CWE-79), allowing attackers to inject malicious scripts that can execute in the context of the victim's browser. The CVSS 3.1 base score is 7.1 (AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L), indicating network attack vector, low attack complexity, no privileges required, user interaction required, scope changed, and partial impact on confidentiality, integrity, and availability. The vulnerability is published and known but lacks an official fix or patch at this time.

Successful exploitation could allow an attacker to execute arbitrary scripts in the context of the affected web application, potentially leading to partial confidentiality loss, integrity compromise, and availability disruption. The vulnerability is exploitable remotely without authentication but requires user interaction. There are no known active exploits reported.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should consider applying workarounds if available or restrict access to the affected plugin functionality. Monitor vendor channels for updates.