PatchTheCVECVE-2020-28459: This affects all versions of package markdown-it-decorate
CVE-2020-28459 is a high-severity flaw (CVSS 7.3) affecting markdown-it-decorate. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
This affects all versions of package markdown-it-decorate. An attacker can add an event handler or use javascript:xxx for the link.
Why this priority
- High severity
- Public exploit reference
- Remotely exploitable, no login, no user action
No fix is published yet: follow the downgrade or mitigation steps.
Risk facts
| CVSS score | 7.3 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.6% (top 51%) |
| CISA exploited list | No |
| Weakness | CWE-79 |
| Published | 2022-07-25 |
| 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-2020-28459?
markdown-it-decorate: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2020-28459 being exploited?
CVE-2020-28459 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-2020-28459 affect?
CVE-2020-28459 affects markdown-it-decorate. Severity is high (CVSS 7.3). This affects all versions of package markdown-it-decorate. An attacker can add an event handler or use javascript:xxx for the link.
How urgent is CVE-2020-28459?
Priority 48/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action