CVE-2024-51434
About
Rainforest analyst review
The Froala WYSIWYG editor parses the plaintext tag inconsistently, and that inconsistency opens a cross-site scripting hole: content that should be rendered inert instead executes as script in a victim's browser. Because Froala is an embeddable editor component rather than a standalone app, the flaw travels wherever the editor is integrated, potentially into many different products at once.
XSS in a rich-text editor is a familiar path to hijacking sessions or acting as the victim within an application, and it needs the user to load the malicious content, which the scoring reflects. The severity is moderate on its own, but the multiplier here is distribution: a single vulnerable component version can quietly sit inside numerous applications that each inherited it as a dependency.
That makes this a dependency-inventory problem for us more than a per-app one. The useful question isn't just 'do we run Froala' but 'which of our applications bundle it, at what version,' since it's the kind of library that gets pulled in and forgotten. We prioritize updating the shared component and, where an app can't be rebuilt immediately, tightening content sanitization and CSP around the editor to blunt the injected script.
References
Related CVEs
Frequently asked questions
What is CVE-2024-51434?
Inconsistent <plaintext> tag parsing allows for XSS in Froala WYSIWYG editor 4.3.0 and earlier.
How severe is CVE-2024-51434?
CVE-2024-51434 carries a CVSS 3.1 base score of 6.1, rated medium. On the Rainforest Risk Index — which weighs the severity alongside how easy the flaw is to reach and how broad its impact is — it scores 67 out of 100, in the elevated band.
How is CVE-2024-51434 exploited?
According to the CVSS vector (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N): attack vector Network, attack complexity Low, privileges required None, user interaction Required. Impact on confidentiality Low, integrity Low and availability None.
How do I fix CVE-2024-51434?
Apply the fix the vendor published — the references on this page link to the primary advisories and patches. When patching can't happen right away, reduce the exposure of the affected component and watch it for exploitation attempts. Rainforest customers see this vulnerability correlated to their own assets and prioritized by real exposure, not by score alone.
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