VULNERABILITY INTELLIGENCE
CVE-2026-5090
CVSS score6.1 MEDIUM
EPSS probability0.29%
CISA KEVNot currently listed
Published2026-05-19
Last modified2026-09-19
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Description
Template::Plugin::HTML versions before 3.103 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.
Weakness classification
- 9b29abf9-4ab0-4765-b253-1875cd9b441e: CWE-79