CVE-2021-28114

published 2021-07-16

CVE-2021-28114: Froala WYSIWYG Editor 3.2.6-1 is affected by XSS due to a namespace confusion during parsing.

Priority P3 39 medium 5.4 CVSS 3.1

AV N AC L PR L UI R S C C L I L A N

Froala WYSIWYG Editor 3.2.6-1 is affected by XSS due to a namespace confusion during parsing.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
froala	froala_editor	< 3.2.7	3.2.7
froala	wysiwyg-editor	>= 0 < 3.2.7	3.2.7

Detection & IOCs extracted from sources · hover to see the quote

• → CVE-2021-28114 is an XSS vulnerability in Froala WYSIWYG Editor 3.2.6-1 caused by a namespace confusion during HTML parsing/sanitization; detect exploitation attempts by monitoring for malformed HTML namespace payloads submitted to endpoints using Froala editor. ↗
• → The vulnerability affects Froala WYSIWYG Editor version 3.2.6-1 specifically; fingerprint this version in HTTP responses or JavaScript assets to identify unpatched deployments. ↗

• · The vulnerability is triggered by namespace confusion during HTML parsing, meaning the XSS bypass is specific to how Froala's sanitizer handles certain HTML namespaces (e.g., SVG/MathML); generic XSS filters may not catch namespace-based bypass payloads. ↗

CVSS provenance

nvd v3.1 5.4 MEDIUM CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

nvd v2.0 3.5 LOW AV:N/AC:M/Au:S/C:N/I:P/A:N

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