PatchTheCVECVE-2020-7771: The package asciitable.js before 1.0.3 are vulnerable to Prototype Pollution via the main function.
CVE-2020-7771 is a high-severity flaw (CVSS 7.5) affecting asciitable.js. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
The package asciitable.js before 1.0.3 are vulnerable to Prototype Pollution via the main function.
Why this priority
- High severity
- Public exploit reference
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 7.5 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 2.0% (top 20%) |
| CISA exploited list | No |
| Weakness | CWE-1321 |
| Published | 2021-01-04 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2020-7771?
asciitable.js: upgrade to 1.0.3. Exact commands for each OS are on this page.
Is CVE-2020-7771 being exploited?
CVE-2020-7771 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2020-7771 affect?
CVE-2020-7771 affects asciitable.js. Severity is high (CVSS 7.5). The package asciitable.js before 1.0.3 are vulnerable to Prototype Pollution via the main function.
How urgent is CVE-2020-7771?
Priority 56/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action