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.
Analysis
Analysis and contextual insights are available on OpenCVE Cloud.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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Vendor Solution
No fixed CPAN release is currently available. Apply the patch.
Tracking
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Wed, 04 Nov 2026 14:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Data::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. | |
| Title | Data::MuForm versions through 0.05 for Perl render attribute values and option labels into HTML without escaping | |
| Weaknesses | CWE-79 | |
| References |
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Subscriptions
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MITRE
Status: PUBLISHED
Assigner: CPANSec
Published:
Updated: 2026-11-04T14:23:14.516Z
Reserved: 2026-11-03T17:04:45.320Z
Link: CVE-2026-121632
Vulnrichment
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NVD
Status : Received
Published: 2026-11-04T15:17:42.130
Modified: 2026-11-04T15:17:42.130
Link: CVE-2026-121632
Redhat
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OpenCVE Enrichment
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CWE-79
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')