What’s Vulnerable › Vulnerabilities

CVE-2019-25103: simple-markdown simple-markdown.js redos

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-02-12 · updated 2026-06-17
• Weakness: CWE-1333

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.

Affected products

• simple-markdown: 0.5.1

References

• https://github.com/ariabuckles/simple-markdown/commit/89797fef9abb4cab2fb76a335968266a92588816
• https://github.com/ariabuckles/simple-markdown/releases/tag/0.5.2
• https://vuldb.com/?ctiid.220639
• https://vuldb.com/?id.220639
• https://github.com/ariabuckles/simple-markdown/commit/89797fef9abb4cab2fb76a335968266a92588816
• https://github.com/ariabuckles/simple-markdown/releases/tag/0.5.2
• https://vuldb.com/?ctiid.220639
• https://vuldb.com/?id.220639

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