CVE-2018-3770
Remote Code Execution in markdown-pdf
A path traversal exists in markdown-pdf version <9.0.0 that allows a user to insert a malicious html code that can result in reading the local files.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
A path traversal exists in markdown-pdf version <9.0.0 that allows a user to insert a malicious html code that can result in reading the local files.
- Record
CVE-2018-3770- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - CVSS 2.0
- 2.1 Low
AV:L/AC:L/Au:N/C:P/I:N/A:N - Weakness
- CWE-22
- Updated
- 2026-11-02
CVE List No score
A path traversal exists in markdown-pdf version <9.0.0 that allows a user to insert a malicious html code that can result in reading the local files.
- Record
CVE-2018-3770- Weakness
- CWE-22
- Updated
- 2026-11-02
EUVDEUVD-2018-0300 No score
A path traversal exists in markdown-pdf version <9.0.0 that allows a user to insert a malicious html code that can result in reading the local files.
- Record
EUVD-2018-0300- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-p7c9-jqhq-vr3v
Remote Code Execution in markdown-pdf
Versions of markdown-pdf prior to 9.0.0 are vulnerable to Remote Code Execution. The package fails to sanitize HTML code in markdown files. If markdown files with malicious HTML are converted to PDF, the resulting PDF file will execute any JavaScript code in the original markdown file. This may allow attackers to execute Remote Code.
Recommendation
Upgrade to version 9.0.0 or later.
- Record
GHSA-p7c9-jqhq-vr3v- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-22
- Updated
- 2026-11-02
OSVGHSA-p7c9-jqhq-vr3v
Remote Code Execution in markdown-pdf
Versions of markdown-pdf prior to 9.0.0 are vulnerable to Remote Code Execution. The package fails to sanitize HTML code in markdown files. If markdown files with malicious HTML are converted to PDF, the resulting PDF file will execute any JavaScript code in the original markdown file. This may allow attackers to execute Remote Code.
Recommendation
Upgrade to version 9.0.0 or later.
- Record
GHSA-p7c9-jqhq-vr3v- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-22
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
markdown-pdfnpm |
before 9.0.0 | 9.0.0 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2018-3770 is a medium vulnerability (CVSS 5.5) in Hackerone Markdown-pdf, published July 20, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.50%, the 43rd percentile. Fixed in markdown-pdf 9.0.0.