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CVE-2020-7679

31
FAUCET Score

CVE-2020-7679 describes a critical Prototype Pollution vulnerability within the mergeObjects utility function across all versions of the casperjs package. This flaw carries a CVSS score of 9.8, indicating a severe risk due to its network-based attack vector, low attack complexity, and potential for complete compromise of confidentiality, integrity, and availability. Despite its high severity, there is currently no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:a:casperjs:casperjs:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.3HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
3.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.96%
Probability of exploitation in next 30 days
EPSS Percentile
78.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0196 is in the 67th percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

npmGHSA-vrr3-5r3v-7xfwhigh

Improperly Controlled Modification of Dynamically-Determined Object Attributes in casperjs

May 17, 2021

References

github.com / casperjs/casperjs/blob/master/modules/utils.js%23L680
Broken Link
snyk.io / vuln/SNYK-JAVA-ORGWEBJARSBOWER-572804
ExploitMitigationThird Party Advisory
snyk.io / vuln/SNYK-JS-CASPERJS-572803
ExploitMitigationThird Party Advisory