Vulnerability in Khanacademy Simple-Markdown
CVE-2019-25103
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.
Vulnerability class: ReDoS (Regular Expression Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.009 (59.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 59.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
- Khanacademy Simple-Markdown — versions 0.5.1
- Simple-Markdown — versions 0.5.1
Weakness classification (CWE)
References
- vuldb.com/ (technical-description, Third Party Advisory, vdb-entry)
- vuldb.com/ (signature, permissions-required, Third Party Advisory)
- github.com/ariabuckles/simple-markdown/commit/89797fef9abb4cab2fb76a335968266a9… (Patch, patch)
- github.com/ariabuckles/simple-markdown/releases/tag/0.5.2 (Release Notes, patch)
Frequently asked questions
- What is CVE-2019-25103?
- CVE-2019-25103 is a medium-severity vulnerability in Khanacademy Simple-Markdown, classified under Inefficient Regular Expression Complexity. CVSS score: 4.3/10. Published 2023-02-12.
- How severe is CVE-2019-25103?
- Medium severity. CVSS v3 base score is 4.3 out of 10.