CVE-2020-28455
CVE-2020-28455 is a high-severity vulnerability in Markdown-it-toc Project Markdown-it-toc with a CVSS 3.x base score of 7.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.
Key facts
- Severity: High (CVSS 3.x base score 7.3)
- EPSS exploit prediction: 1% (40th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-79
- Affected product: Markdown-it-toc Project Markdown-it-toc
- Published:
- Last modified:
Description
This affects all versions of package markdown-it-toc. The title of the generated toc and the contents of the header are not escaped.
Frequently asked questions
- What is CVE-2020-28455?
- This affects all versions of package markdown-it-toc. The title of the generated toc and the contents of the header are not escaped.
- How severe is CVE-2020-28455?
- CVE-2020-28455 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
- Is CVE-2020-28455 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-28455?
- CVE-2020-28455 affects Markdown-it-toc Project Markdown-it-toc. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-28455?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2020-28455 published?
- CVE-2020-28455 was published on 2022-07-25 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:markdown-it-toc_project:markdown-it-toc:*:*:*:*:*:node.js:*:*
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