Summary
Tuta Mail has DOM attribute and CSS injection in its Contact Viewer feature
Technical details
The data is included as part of the mithril's hyperscript selector. It is possible to define a value like ][href=https://ddg.gg][style=position:fixed;width:150vw;height:200vh which will be included in the selector passed to Mithril and will be interpreted as part of the code.
Workarounds
Do not open contact viewer on unpatched versions. If the contact was opened, close the app or use keyboard shortcuts to switch to another part of the app.
Impact
Users importing contacts from untrusted sources.
Specifically crafted contact data can lead to some of DOM modifications for the link button next to the field e.g. the link address can be overriden. CSS can be manipulated to give the button arbitrary look and change it's size so that any click on the screen would lead to the specified URL. Modifying event listeners does not seem to be possible so no JS can be executed (which would also be prevented by CSP).
Untrusted input is rendered as active markup in a victim's browser, which can run script in their session. Typical impact: session or credential theft, and actions taken as the user.
Affected versions
Security releases
Kodem intelligence
Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.
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Frequently Asked Questions
- What is GHSA-24V3-254G-JV85? GHSA-24V3-254G-JV85 is a low-severity cross-site scripting (XSS) vulnerability in @tutao/tutanota-utils (npm), affecting versions < 314.251111.0. It is fixed in 314.251111.0. Untrusted input is rendered as active markup in a victim's browser, which can run script in their session.
- Which versions of @tutao/tutanota-utils are affected by GHSA-24V3-254G-JV85? @tutao/tutanota-utils (npm) versions < 314.251111.0 is affected.
- Is there a fix for GHSA-24V3-254G-JV85? Yes. GHSA-24V3-254G-JV85 is fixed in 314.251111.0. Upgrade to this version or later.
- Is GHSA-24V3-254G-JV85 exploitable, and should I be worried? Whether GHSA-24V3-254G-JV85 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
- What actually determines whether GHSA-24V3-254G-JV85 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
- How do I fix GHSA-24V3-254G-JV85? Upgrade
@tutao/tutanota-utilsto 314.251111.0 or later.