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Local File Inclusion vulnerability in zmarkdownGHSA-mq6v-w35g-3c97

GHSA-mq6v-w35g-3c97 is a security vulnerability in zmarkdown. A fix is available for zmarkdown — see the affected versions and patch details below.

Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of May 14, 2024 · OSV.dev, FIRST.org (EPSS)

Real-World Exposure

1 pkg affected

How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.

1other npm packages depend on this — each one inherits the vulnerability until it's patched upstream
zmarkdownnpm
250downloads / week

Description

Impact

A minor Local File Inclusion vulnerability has been found in zmarkdown, which allowed for images with a known path on the host machine to be included inside a LaTeX document.

To prevent it, a new option has been created that allow to replace invalid paths with a default image instead of linking the image on the host directly. zmarkdown has been updated to make this setting the default.

Every user of zmarkdown is likely impacted, except if disabling LaTeX generation or images download. Here is an example of including an image from an invalid path:

![](/tmp/img.png)

Will effectively redownload and include the image found at /tmp/img.png.

Patches

The vulnerability has been patched in version 10.1.3. If impacted, you should update to this version as soon as possible.

Workarounds

Disable images downloading, or sanitize paths.

For more information

If you have any questions or comments about this advisory, open an issue in ZMarkdown.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
📦npmzmarkdownall versions10.1.3npm install zmarkdown@10.1.3

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for zmarkdown, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update zmarkdown to 10.1.3 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-mq6v-w35g-3c97 is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

### Impact A minor Local File Inclusion vulnerability has been found in `zmarkdown`, which allowed for images with a known path on the host machine to be included inside a LaTeX document. To prevent it, a new option has been created that allow to replace invalid paths with a default image instead of linking the image on the host directly. `zmarkdown` has been updated to make this setting the default. Every user of `zmarkdown` is likely impacted, except if disabling LaTeX generation or images download. Here is an example of including an image from an invalid path: ```markdown ![](/tmp/img.p
O3 Security · Impact-Aware SCA

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Local File Inclusion vulnerability in zmarkdown