CVE-2019-25103

Name: CVE-2019-25103
Creator: NVD / NIST
Published: 2023-02-12T15:15:10.61+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.94%

Last modified Jun 17, 2026

CVE-2019-25103 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A vulnerability has been found in simple-markdown 0.5.1 and classified as problematic. Affected by this vulnerability is an unknown functionality of the file simple-markdown.js. EPSS estimates a 0.94% chance of exploitation in the next 30 days.

Description

A vulnerability has been found in simple-markdown 0.5.1 and classified as problematic. Affected by this vulnerability is an unknown functionality of the file simple-markdown.js. The manipulation leads to inefficient regular expression complexity. The attack can be launched remotely. Upgrading to version 0.5.2 is able to address this issue. The patch is named 89797fef9abb4cab2fb76a335968266a92588816. It is recommended to upgrade the affected component. The associated identifier of this vulnerability is VDB-220639.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

0.94%

56.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Khanacademy	Simple-Markdown	0.5.1

References

https://github.com/ariabuckles/simple-markdown/commit/89797fef9abb4cab2fb76a335968266a92588816Patch
https://github.com/ariabuckles/simple-markdown/releases/tag/0.5.2Release Notes
https://vuldb.com/?ctiid.220639Third Party Advisory
https://vuldb.com/?id.220639Third Party Advisory
https://github.com/ariabuckles/simple-markdown/commit/89797fef9abb4cab2fb76a335968266a92588816Patch
https://github.com/ariabuckles/simple-markdown/releases/tag/0.5.2Release Notes
https://vuldb.com/?ctiid.220639Third Party Advisory
https://vuldb.com/?id.220639Third Party Advisory

Timeline

Published: Feb 12, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-25103?

How severe is CVE-2019-25103?

CVE-2019-25103 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.94% probability of exploitation in the next 30 days.

How do I fix CVE-2019-25103?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-25103?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST