CVE-2020-7771 json
Prototype Pollution
published 2021-01-04 5 y ago modified 2026-09-10 1 mo ago also GHSA-5pxj-mhwj-x5gv , EUVD-2021-0768
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.0%
- EPSS 2.0% chance of exploitation in 30 days, percentile 80%
- public exploits
- 0
- none known
Summary
The package asciitable.js before 1.0.3 are vulnerable to Prototype Pollution via the main function.
Patch / fix
- npm asciitable.js 1.0.3
- n/a asciitable.js 1.0.3
- github.com/victornpb/asciitable.js@8db8fc5 commit
- github.com/victornpb/asciitable.js#1 pull request
Exploit prediction
1.96% chance of exploitation in the next 30 days, higher than 80% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- snyk.io https://snyk.io/vuln/SNYK-JS-ASCIITABLEJS-1039799 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
| GitHub | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | asciitable.js | <1.0.3 |
1.0.3 |
Affected products
- n/a asciitable.js
Classification
References
-
github.com
/victornpb/asciitable.js/pull/1
web, patch, third-party-advisory
-
github.com
/victornpb/asciitable.js/commit/8db8fc5ffa7a2a6e8596709d99b200afb53f40ab
web
-
snyk.io
/vuln/SNYK-JS-ASCIITABLEJS-1039799
web, exploit, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2020-7771
advisory
-
github.com
/victornpb/asciitable.js
package
Sources
- CVE List CVE-2020-7771
- GitHub Advisory GHSA-5pxj-mhwj-x5gv
- NVD CVE-2020-7771
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.