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CVE-2026-85485

HTML::FormHandler versions before 0.410002 for Perl render some error messages into HTML without escaping

6.1 MediumFix available

HTML::FormHandler versions before 0.410002 for Perl render some error messages into HTML without escaping.

The Table form layout and the Bootstrap 2 and 3 wrappers splice each error string straight into the surrounding markup. Version 0.410000, the fix for CVE-2026-19872, escaped the equivalent values in the other layouts and wrappers, and 0.410002 extended that to these three.

Error messages that contain attacker-influenced content such as rejected field values could embed JavaScript in rendered pages.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
Low
Integrity
Low
Availability
None

Exploit likelihood

0.26%Up 0.1 points since Sep 9, 2026
90%50%10%1%

What each source reports

CVE List Score used 6.1

HTML::FormHandler versions before 0.410002 for Perl render some error messages into HTML without escaping

HTML::FormHandler versions before 0.410002 for Perl render some error messages into HTML without escaping.

The Table form layout and the Bootstrap 2 and 3 wrappers splice each error string straight into the surrounding markup. Version 0.410000, the fix for CVE-2026-19872, escaped the equivalent values in the other layouts and wrappers, and 0.410002 extended that to these three.

Error messages that contain attacker-influenced content such as rejected field values could embed JavaScript in rendered pages.

Record
CVE-2026-85485
CVSS 3.1
6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness
CWE-79
Updated
2026-11-02
EUVDEUVD-2026-74169 6.1

HTML::FormHandler versions before 0.410002 for Perl render some error messages into HTML without escaping.

The Table form layout and the Bootstrap 2 and 3 wrappers splice each error string straight into the surrounding markup. Version 0.410000, the fix for CVE-2026-19872, escaped the equivalent values in the other layouts and wrappers, and 0.410002 extended that to these three.

Error messages that contain attacker-influenced content such as rejected field values could embed JavaScript in rendered pages.

Record
EUVD-2026-74169
CVSS 3.1
6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-m5h3-w9r6-p935 6.1

HTML::FormHandler versions before 0.410002 for Perl render some error messages into HTML without...

HTML::FormHandler versions before 0.410002 for Perl render some error messages into HTML without escaping.

The Table form layout and the Bootstrap 2 and 3 wrappers splice each error string straight into the surrounding markup. Version 0.410000, the fix for CVE-2026-19872, escaped the equivalent values in the other layouts and wrappers, and 0.410002 extended that to these three.

Error messages that contain attacker-influenced content such as rejected field values could embed JavaScript in rendered pages.

Record
GHSA-m5h3-w9r6-p935
CVSS 3.1
6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness
CWE-79
Updated
2026-11-02
NVD 6.1

HTML::FormHandler versions before 0.410002 for Perl render some error messages into HTML without escaping.

The Table form layout and the Bootstrap 2 and 3 wrappers splice each error string straight into the surrounding markup. Version 0.410000, the fix for CVE-2026-19872, escaped the equivalent values in the other layouts and wrappers, and 0.410002 extended that to these three.

Error messages that contain attacker-influenced content such as rejected field values could embed JavaScript in rendered pages.

Record
CVE-2026-85485
CVSS 3.1
6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness
CWE-79
Updated
2026-11-02
OSV 6.1

HTML::FormHandler versions before 0.410002 for Perl render some error messages into HTML without escaping

HTML::FormHandler versions before 0.410002 for Perl render some error messages into HTML without escaping.

The Table form layout and the Bootstrap 2 and 3 wrappers splice each error string straight into the surrounding markup. Version 0.410000, the fix for CVE-2026-19872, escaped the equivalent values in the other layouts and wrappers, and 0.410002 extended that to these three.

Error messages that contain attacker-influenced content such as rejected field values could embed JavaScript in rendered pages.

Record
CVE-2026-85485
CVSS 3.1
6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness
CWE-79
Updated
2026-11-02
OSVDEBIAN-CVE-2026-85485 6.1

HTML::FormHandler versions before 0.410002 for Perl render some error messages into HTML without escaping. The Table form layout and the Bootstrap 2 and 3 wrappers splice each error string straight into the surrounding markup. Version 0.410000, the fix for CVE-2026-19872, escaped the equivalent values in the other layouts and wrappers, and 0.410002 extended that to these three. Error messages that contain attacker-influenced content such as rejected field values could embed JavaScript in rendered pages.

Record
DEBIAN-CVE-2026-85485
CVSS 3.1
6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Updated
2026-11-02
OSVUBUNTU-CVE-2026-85485 6.1

HTML::FormHandler versions before 0.410002 for Perl render some error messages into HTML without escaping. The Table form layout and the Bootstrap 2 and 3 wrappers splice each error string straight into the surrounding markup. Version 0.410000, the fix for CVE-2026-19872, escaped the equivalent values in the other layouts and wrappers, and 0.410002 extended that to these three. Error messages that contain attacker-influenced content such as rejected field values could embed JavaScript in rendered pages.

Record
UBUNTU-CVE-2026-85485
CVSS 3.1
6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Updated
2026-11-02
OSVopenSUSE-SU-2026:11745-1 No score

perl-HTML-FormHandler-0.410.2-1.1 on GA media

These are all security issues fixed in the perl-HTML-FormHandler-0.410.2-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2026:11745-1
Updated
2026-11-02

Affected packages

Affected packages
PackageAffectedFixed
libhtml-formhandler-perl
Debian:12
 All versions, plus listed versions
0.40068-20.40068-30.410002-1
 None known
libhtml-formhandler-perl
Debian:13
 All versions, plus listed versions
0.40068-20.40068-30.410002-1
 None known
libhtml-formhandler-perl
Debian:14
 before 0.410002-1, plus listed versions
0.40068-20.40068-3
0.410002-1
libhtml-formhandler-perl
Ubuntu:16.04:LTS
 All versions, plus listed versions
0.40057-10.40064-1
 None known
libhtml-formhandler-perl
Ubuntu:18.04:LTS
 All versions, plus listed versions
0.40067-10.40068-1
 None known
libhtml-formhandler-perl
Ubuntu:20.04:LTS
 All versions, plus listed versions
0.40068-1
 None known
libhtml-formhandler-perl
Ubuntu:22.04:LTS
 All versions, plus listed versions
0.40068-1
 None known
libhtml-formhandler-perl
Ubuntu:24.04:LTS
 All versions, plus listed versions
0.40068-2
 None known
libhtml-formhandler-perl
Ubuntu:26.10
 All versions, plus listed versions
0.40068-20.40068-3
 None known
libhtml-formhandler-perl
Ubuntu:26.04:LTS
 All versions, plus listed versions
0.40068-2
 None known
perl-HTML-FormHandler
openSUSE:Tumbleweed
From an advisory covering 5 CVEs
 before 0.410.2-1.1
0.410.2-1.1

History

History
RecordedChangedSources
affected, facts
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-85485 is a medium vulnerability (CVSS 6.1) in libhtml-formhandler-perl, published September 8, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.26%, the 18th percentile. Fixed in libhtml-formhandler-perl 0.410002-1.

References

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