Vulnerability in Khanacademy Simple-Markdown
CVE-2019-25102
A vulnerability, which was classified as problematic, was found in simple-markdown 0.6.0. Affected is an unknown function of the file simple-markdown.js. The manipulation with the input <<<<<<<<<<:/:/:/:/:/:/:/:/:/:/ leads to inefficient regular expression complexity. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 0.6.1 is able to address this issue. The patch is identified as 015a719bf5cdc561feea05500ecb3274ef609cd2. It is recommended to upgrade the affected component. VDB-220638 is the identifier assigned to this vulnerability.
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: 0.011 (64.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 64th percentile — 64.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000
Affected products
- Khanacademy Simple-Markdown — versions 0.6.0
- Simple-Markdown — versions 0.6.0
Weakness classification (CWE)
References
- vuldb.com/ (Permissions Required, technical-description, Third Party Advisory, vdb-entry)
- vuldb.com/ (signature, Permissions Required, permissions-required, Third Party Advisory)
- github.com/ariabuckles/simple-markdown/pull/73 (issue-tracking, Exploit, Patch, exploit, Issue Tracking)
- github.com/ariabuckles/simple-markdown/commit/015a719bf5cdc561feea05500ecb3274e… (Patch, patch)
- github.com/ariabuckles/simple-markdown/releases/tag/0.6.1 (Release Notes, patch)
Frequently asked questions
- What is CVE-2019-25102?
- CVE-2019-25102 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-2019-25102?
- Medium severity. CVSS v3 base score is 4.3 out of 10.