Data::MuForm versions through 0.05 for Perl render attribute values and option labels into HTML without escaping

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-121632
StatePUBLISHED
AssignerCPANSec
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-11-04 15:17:42 UTC
Updated2026-11-04 19:17:31 UTC
DescriptionData::MuForm versions through 0.05 for Perl render attribute values and option labels into HTML without escaping. process_attrs writes each attribute value into the markup as is. The select, radio group and checkbox group renderers pass each option to it, so an option's value becomes an unescaped attribute. Option and option group labels are also unescaped, the group label inside a label attribute and the others in element content. Any application whose option list is built from data rather than literals, using an options_<field_name> method, a build_options method or a DBIC model, allows attacker-influenced text in an option value or label that can embed JavaScript in rendered pages. Attribute values built from data, such as through element_attr, are affected the same way.

Risk And Classification

Problem Types: CWE-79 | CWE-79 CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

References

ReferenceSourceLinkTags
metacpan.org/release/GSHANK/Data-MuForm-0.05/source/lib/Data/MuForm/Render... 9b29abf9-4ab0-4765-b253-1875cd9b441e metacpan.org
github.com/gshank/data-muform/pull/18 9b29abf9-4ab0-4765-b253-1875cd9b441e github.com
www.openwall.com/lists/oss-security/2026/11/04/4 af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Additional Advisory Data

Solutions

CNA: No fixed CPAN release is currently available. Apply the patch.

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