Cloudanix VulnDB

CVE-2026-5090

Medium · 6.1

CVSS

6.1

EPSS

0.3%

Published

May 19, 2026

CISA due date

—

The record

Template::Plugin::HTML versions through 3.102 for Perl allows HTML and JavaScript to be injected. The html_filter function did not escape single quotes. HTML attributes inside of single quotes could be have code injected. For example, the variable "var" in <a id='ref' title='[% var | html %]'> would not be properly escaped. An attacker could insert some limited HTML and JavaScript, for example, var = " ' onclick='while (true) { alert(1) }'" Note that arbitrary HTML and JavaScript would be difficult to inject, because angle brackets, ampersands and double-quotes would still be escaped.

Affected packages

Ecosystem Package Introduced Fixed

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