CVE-2020-28459
Cross-site Scripting (XSS)
This affects all versions of package markdown-it-decorate. An attacker can add an event handler or use javascript:xxx for the link.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
Cross-site Scripting (XSS)
This affects all versions of package markdown-it-decorate. An attacker can add an event handler or use javascript:xxx for the link.
- Record
CVE-2020-28459- CVSS 3.1
- 7.3 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:U/RC:C - Updated
- 2026-11-02
EUVDEUVD-2022-6409
This affects all versions of package markdown-it-decorate. An attacker can add an event handler or use javascript:xxx for the link.
- Record
EUVD-2022-6409- CVSS 3.1
- 7.3 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:U/RC:C - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-rhf5-2378-3w3w
markdown-it-decorate vulnerable to cross-site scripting (XSS)
markdown-it-decorate adds attributes, IDs and classes to Markdown, and the most recent version 1.2.2 was published in 2017. All versions are currently vulnerable to cross-site scripting (XSS) and there is no fixed version at this time
- Record
GHSA-rhf5-2378-3w3w- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
NVD
This affects all versions of package markdown-it-decorate. An attacker can add an event handler or use javascript:xxx for the link.
- Record
CVE-2020-28459- CVSS 3.1
- 7.3 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L - CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
OSVGHSA-rhf5-2378-3w3w
markdown-it-decorate vulnerable to cross-site scripting (XSS)
markdown-it-decorate adds attributes, IDs and classes to Markdown, and the most recent version 1.2.2 was published in 2017. All versions are currently vulnerable to cross-site scripting (XSS) and there is no fixed version at this time
- Record
GHSA-rhf5-2378-3w3w- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
markdown-it-decoratenpm |
through 1.2.2 | None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-28459 is a high vulnerability (CVSS 7.3) in Markdown-it-decorate Project Markdown-it-decorate, published July 19, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.61%, the 49th percentile. No source names a fixed version.