6.1
MEDIUM CVSS 3.1
CVE-2026-85630
HTML::FormHandler versions before 0.410002 for Perl render field attributes into HTML without escaping using the process_attrs method
Description

HTML::FormHandler versions before 0.410002 for Perl render field attributes into HTML without escaping using the process_attrs method. Any application with fields or field labels where some attributes are built from data rather than literals allows attacker-influenced text in an attribute value that can override the field attributes or embed JavaScript in rendered pages. For example, the RadioGroup widget uses the process_attrs method via the render_option and wrap_radio methods.

INFO

Published Date :

Sept. 8, 2026, 8:18 p.m.

Last Modified :

Sept. 10, 2026, 6:18 p.m.

Remotely Exploit :

Yes !

Source :

9b29abf9-4ab0-4765-b253-1875cd9b441e
Affected Products

The following products are affected by CVE-2026-85630 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 134c704f-9b21-4f2e-91b3-4a467353bcc0
CVSS 3.1 MEDIUM 134c704f-9b21-4f2e-91b3-4a467353bcc0
Solution
Update HTML::FormHandler to 0.410002 or later to fix attribute rendering and prevent XSS.
  • Update HTML::FormHandler to version 0.410002 or later.
  • Escape field attributes to prevent XSS.
  • Review and sanitize user-supplied attribute data.
  • Test applications for proper attribute rendering.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-85630.

URL Resource
https://github.com/gshank/html-formhandler/commit/a887271e91d755e6486a9f433ae932deb1d2c4a6.patch
https://metacpan.org/release/ABRAXXA/HTML-FormHandler-0.410002/changes
http://www.openwall.com/lists/oss-security/2026/09/08/18
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-85630 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-85630 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-85630 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-85630 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Sep. 10, 2026

    Action Type Old Value New Value
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    Added SSVC {'id': 'CVE-2026-85630', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-09-10T17:48:09.876823Z'}
  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Sep. 08, 2026

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2026/09/08/18
  • New CVE Received by 9b29abf9-4ab0-4765-b253-1875cd9b441e

    Sep. 08, 2026

    Action Type Old Value New Value
    Added Description HTML::FormHandler versions before 0.410002 for Perl render field attributes into HTML without escaping using the process_attrs method. Any application with fields or field labels where some attributes are built from data rather than literals allows attacker-influenced text in an attribute value that can override the field attributes or embed JavaScript in rendered pages. For example, the RadioGroup widget uses the process_attrs method via the render_option and wrap_radio methods.
    Added CWE CWE-79
    Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/85xxx/CVE-2026-85630.json">CVE-2026-85630</a>
    Added Reference https://github.com/gshank/html-formhandler/commit/a887271e91d755e6486a9f433ae932deb1d2c4a6.patch
    Added Reference https://metacpan.org/release/ABRAXXA/HTML-FormHandler-0.410002/changes
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.