CVE-2026-5090: CWE-79 Improper Neutralization of Input During Web Page Generation in TODDR Template::Plugin::HTML
CVE-2026-5090 is a cross-site scripting (XSS) vulnerability in Template::Plugin::HTML for Perl, affecting versions through 3. 102. The issue arises because the html_filter function does not escape single quotes, allowing injection of limited HTML and JavaScript code within HTML attributes enclosed in single quotes. Although angle brackets, ampersands, and double quotes are escaped, this flaw enables an attacker to inject code such as event handlers. There is no official patch or remediation guidance currently available. No known exploits have been reported in the wild.
AI Analysis
Technical Summary
Template::Plugin::HTML versions through 3.102 for Perl contain an improper input neutralization vulnerability (CWE-79) due to the html_filter function failing to escape single quotes. This allows injection of limited HTML and JavaScript code into HTML attributes enclosed by single quotes, potentially enabling cross-site scripting attacks. The vulnerability restricts injection of arbitrary HTML or JavaScript because other critical characters remain escaped. No CVSS score or official remediation is currently provided.
Potential Impact
An attacker can inject limited HTML and JavaScript code into web pages generated using the affected Template::Plugin::HTML versions, potentially leading to cross-site scripting attacks. This could allow execution of attacker-controlled scripts in the context of the vulnerable web application. However, the injection is limited due to escaping of angle brackets, ampersands, and double quotes, reducing the scope of possible exploits. No known exploits are reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should avoid using the vulnerable versions or implement additional input validation and output encoding to mitigate injection risks. Monitor official channels for updates regarding patches or official mitigations.
CVE-2026-5090: CWE-79 Improper Neutralization of Input During Web Page Generation in TODDR Template::Plugin::HTML
Description
CVE-2026-5090 is a cross-site scripting (XSS) vulnerability in Template::Plugin::HTML for Perl, affecting versions through 3. 102. The issue arises because the html_filter function does not escape single quotes, allowing injection of limited HTML and JavaScript code within HTML attributes enclosed in single quotes. Although angle brackets, ampersands, and double quotes are escaped, this flaw enables an attacker to inject code such as event handlers. There is no official patch or remediation guidance currently available. No known exploits have been reported in the wild.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Template::Plugin::HTML versions through 3.102 for Perl contain an improper input neutralization vulnerability (CWE-79) due to the html_filter function failing to escape single quotes. This allows injection of limited HTML and JavaScript code into HTML attributes enclosed by single quotes, potentially enabling cross-site scripting attacks. The vulnerability restricts injection of arbitrary HTML or JavaScript because other critical characters remain escaped. No CVSS score or official remediation is currently provided.
Potential Impact
An attacker can inject limited HTML and JavaScript code into web pages generated using the affected Template::Plugin::HTML versions, potentially leading to cross-site scripting attacks. This could allow execution of attacker-controlled scripts in the context of the vulnerable web application. However, the injection is limited due to escaping of angle brackets, ampersands, and double quotes, reducing the scope of possible exploits. No known exploits are reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should avoid using the vulnerable versions or implement additional input validation and output encoding to mitigate injection risks. Monitor official channels for updates regarding patches or official mitigations.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- CPANSec
- Date Reserved
- 2026-03-28T19:35:11.737Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a0cde35ba1db47362f22f4e
Added to database: 5/19/2026, 10:03:33 PM
Last enriched: 5/19/2026, 10:18:34 PM
Last updated: 5/19/2026, 11:05:46 PM
Views: 3
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