Cross-site Scripting (XSS) - DOM in plaidweb/webmention.js
Priority HIGH 66CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-79.
Summary
Cross-site Scripting (XSS) - DOM in GitHub repository plaidweb/webmention.js prior to 0.5.5.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0049 42nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed plaidweb/webmention.js (plaidweb): 0.5.5webmention.js (npm): 0.5.5
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| plaidweb | plaidweb/webmention.js | before 0.5.5 | 0.5.5 | Patch available | CNA |
| — | webmention.js (npm) | before 0.5.5 | 0.5.5 | Patch available | GHSA-r54g-4qq6-chxg |
- plaidweb/webmention.js Vendorplaidweb Affected before 0.5.5 Fixed in 0.5.5 Patch available CNA
- webmention.js (npm) Vendor— Affected before 0.5.5 Fixed in 0.5.5 Patch available GHSA-r54g-4qq6-chxg
Remediation
- Fix · CNA plaidweb/webmention.js (plaidweb) Fixed in 0.5.5
- Fix · GHSA-r54g-4qq6-chxg webmention.js (npm) Fixed in 0.5.5 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2023-3672
- 2026-10-03 Alias added: GHSA-r54g-4qq6-chxg
References
Sources
- CVE-2023-3672 · CVE Program
- CVE-2023-3672 · NVD
- FIRST EPSS
- GHSA-r54g-4qq6-chxg · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences