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.
History

Wed, 20 May 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 20 May 2026 11:45:00 +0000

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First Time appeared Toddr
Toddr template::plugin::html
Vendors & Products Toddr
Toddr template::plugin::html

Wed, 20 May 2026 00:30:00 +0000

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References

Tue, 19 May 2026 22:00:00 +0000

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Description 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.
Title Template::Plugin::HTML versions through 3.102 for Perl allows HTML and JavaScript to be injected
Weaknesses CWE-79
References

cve-icon MITRE

Status: PUBLISHED

Assigner: CPANSec

Published: 2026-05-19T21:30:03.552Z

Updated: 2026-05-20T13:45:31.562Z

Reserved: 2026-03-28T19:35:11.737Z

Link: CVE-2026-5090

cve-icon Vulnrichment

Updated: 2026-05-19T23:25:21.832Z

cve-icon NVD

Status : Deferred

Published: 2026-05-19T22:16:39.003

Modified: 2026-05-20T14:17:02.610

Link: CVE-2026-5090

cve-icon Redhat

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