CVE-2020-7707

Public Exploit
Prototype Pollution

Description

The package property-expr before 2.0.3 are vulnerable to Prototype Pollution via the setter function.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.60% Top 20%
Third-Party Advisory github.com Third-Party Advisory snyk.io Third-Party Advisory snyk.io
Affected: n/a property-expr
Published at:
Updated at:

References

Link Tags
https://snyk.io/vuln/SNYK-JS-PROPERTYEXPR-598800 third party advisory exploit
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-598857 third party advisory exploit
https://github.com/jquense/expr/commit/df846910915d59f711ce63c1f817815bceab5ff7 third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2020-7707?
CVE-2020-7707 has been scored as a critical severity vulnerability.
How to fix CVE-2020-7707?
To fix CVE-2020-7707, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-7707 being actively exploited in the wild?
It is possible that CVE-2020-7707 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-7707?
CVE-2020-7707 affects n/a property-expr.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.