CVE-2025-7969: markdown-it XSS — Exploit

Description

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in markdown-it allows Cross-Site Scripting (XSS). This vulnerability is associated with program files lib/renderer.mjs. This issue affects markdown-it: 14.1.0. NOTE: the Supplier does not consider this issue to be a vulnerability.

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CVSS v3.1 Score

6.1

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

Affected Products

Vendor	Product	Versions
markdown-it_project	markdown-it	All

References

Exploits

https://fluidattacks.com/advisories/fito https://fluidattacks.com/advisories/fito

Other References

https://github.com/markdown-it/markdown-it https://github.com/markdown-it/markdown-it/issues/1122

Frequently Asked Questions

What is CVE-2025-7969? +

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in markdown-it allows Cross-Site Scripting (XSS). This vulnerability is associated with program files lib/renderer.mjs. This issue affects markdown-it: 14.1.0. NOTE: the Supplier does not consider this issue to be a vulnerability. It has a CVSS v3.1 base score of 6.1 (MEDIUM).

How severe is CVE-2025-7969? +

CVE-2025-7969 has a CVSS v3.1 score of 6.1 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-7969? +

CVE-2025-7969 affects products from markdown-it_project, specifically: markdown-it. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-7969? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2025-7969