Cross-site Scripting (XSS) Affecting plone.app.textfield package, versions [,2.0.2)[3.0.0,3.0.2)[4.0.0,4.0.1)
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- published26 Jul 2026
- disclosed17 Jul 2026
- creditUnknown
Introduced: 17 Jul 2026
NewCVE-2026-54503 (opens in a new tab)How to fix?
Upgrade plone.app.textfield to version 2.0.2, 3.0.2, 4.0.1 or higher.
Overview
plone.app.textfield is a
Affected versions of this package are vulnerable to Cross-site Scripting (XSS).
via the RichTextValue.output function when the stored mimeType equals the outputMimeType, causing unsanitized content to bypass the safe_html transform and be rendered directly. An attacker can execute arbitrary scripts in the context of the user's browser by submitting malicious payloads to RichText fields through the REST API or misconfigured field definitions.