Prototype Pollution in Mathjs
CVE-2020-7743
The package mathjs before 7.5.1 are vulnerable to Prototype Pollution via the deepExtend function that runs upon configuration updates.
Vulnerability class: Prototype Pollution
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.039 (90.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 90.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.039 · newest: 0.039 · change: 0.000
Affected products
- Mathjs
- Mathjs — versions unspecified
Weakness classification (CWE)
Public proof-of-concept exploits
References
- snyk.io/vuln/SNYK-JS-MATHJS-1016401 (Exploit, Third Party Advisory, Mitigation)
- snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1017111 (Exploit, Third Party Advisory, Mitigation)
- snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-1017112 (Exploit, Third Party Advisory, Mitigation)
- snyk.io/vuln/SNYK-JAVA-ORGWEBJARS-1017113 (Exploit, Third Party Advisory, Mitigation)
- github.com/josdejong/mathjs/blob/develop/src/utils/object.js#L82 (Third Party Advisory, Broken Link)
- github.com/josdejong/mathjs/commit/ecb80514e80bce4e6ec7e71db8ff79954f07c57e (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-7743?
- CVE-2020-7743 is a high-severity vulnerability in Mathjs, classified under Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution). CVSS score: 7.3/10. Published 2020-10-13.
- How severe is CVE-2020-7743?
- High severity. CVSS v3 base score is 7.3 out of 10.
- Is CVE-2020-7743 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.