Is CVE-2019-9737 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2019-9737 being exploited in the wild.

How severe is CVE-2019-9737?

Low severity, with a CVSS score of 3.1, published 14 March 2019.

Is there a fix for CVE-2019-9737?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2019-9737 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2019-9737?

Check whether you run editor.md (npm). Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2019-9737: Pandao editor.md Cross-Site Scripting in EMBED tags

CVE-2019-9737 · Severity: low · CVSS 3.1 · Published 2019-03-14

editor.md is an open-source Markdown editor used to provide rich text editing capabilities in web applications. A security flaw allows attackers to embed malicious scripts within Markdown content, which could lead to unauthorized actions or data theft when other users view the edited text. Because no official patch is available, organizations using this component may be at risk of account hijacking or session theft.

Technologies: editor.md (npm). Vendors: npm.

Quick answers

Is CVE-2019-9737 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2019-9737 being exploited in the wild.
How severe is CVE-2019-9737?: Low severity, with a CVSS score of 3.1, published 14 March 2019.
Which products and versions are affected?: pandao editor.md 1.5.0.
Is there a fix for CVE-2019-9737?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2019-9737 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2019-9737?: Check whether you run editor.md (npm). Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A DOM-based Cross-Site Scripting (XSS) vulnerability exists in editor.md version 1.5.0. The issue stems from improper neutralization of user-controllable input within the Markdown rendering engine, specifically when processing '<EMBED>' tags. An attacker can bypass sanitization by using a 'data:image/svg+xml;base64' source containing a malicious script payload. When a victim views the rendered Markdown, the injected script executes in the context of their browser session. As of the latest advisory update, no official patch has been released, and users are advised to seek alternative libraries.

Affected products

pandao editor.md 1.5.0

Identifiers

CVE-2019-9737
GHSA-2j5v-fc74-j9q2

Timeline

2019-03-07: disclosed: Issue reported on GitHub repository
2019-03-12: advisory: NVD published CVE-2019-9737
2019-03-14: advisory: GitHub Advisory GHSA-2j5v-fc74-j9q2 published

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.