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CVE-2020-7771

29
FAUCET Score

CVE-2020-7771 describes a critical Prototype Pollution vulnerability in asciitable.js versions prior to 1.0.3, affecting projects utilizing this package. With a CVSS score of 9.8, this vulnerability is easily exploitable over the network with low attack complexity, allowing for high impact to confidentiality, integrity, and availability. While no active exploitation, public exploit code, or significant community discussion has been observed, the critical severity warrants immediate patching.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.0.3CPE matchmatch criteria
cpe:2.3:a:asciitable.js_project:asciitable.js:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.94%
Probability of exploitation in next 30 days
EPSS Percentile
78.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0194 is in the 67th percentile among its peer group of 36,829 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

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
npmpatch availablevia ghsa
Product: asciitable.jsFixed in: 1.0.3

Vendor Advisories (1)

npmGHSA-5pxj-mhwj-x5gvcritical

Prototype Pollution in asciitable.js

Apr 13, 2021

References

github.com / victornpb/asciitable.js/pull/1
PatchThird Party Advisory
snyk.io / vuln/SNYK-JS-ASCIITABLEJS-1039799
ExploitThird Party Advisory