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Ubuntu 22.04 LTS / 24.04 LTS : Template-Toolkit vulnerability (USN-8377-1)

medium Nessus Plugin ID 318636

Synopsis

The remote Ubuntu host is missing a security update.

Description

The remote Ubuntu 22.04 LTS / 24.04 LTS host has a package installed that is affected by a vulnerability as referenced in the USN-8377-1 advisory.

 It was discovered that Template-Toolkit did not properly escape single quotes in the html_filter function of Template::Plugin::HTML. An attacker could possibly use this issue to inject arbitrary HTML and JavaScript into generated output.

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected libtemplate-perl package.

See Also

https://ubuntu.com/security/notices/USN-8377-1

Plugin Details

Severity: Medium

ID: 318636

File Name: ubuntu_USN-8377-1.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 6/4/2026

Updated: 6/4/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.8

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N

CVSS Score Source: CVE-2026-5090

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.3

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:22.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:libtemplate-perl, cpe:/o:canonical:ubuntu_linux:24.04:-:lts

Required KB Items: Host/cpu, Host/Debian/dpkg-l, Host/Ubuntu, Host/Ubuntu/release

Exploit Ease: No known exploits are available

Patch Publication Date: 6/3/2026

Vulnerability Publication Date: 5/19/2026

Reference Information

CVE: CVE-2026-5090

USN: 8377-1