webmention.js Cross-site Scripting vulnerability

MEDIUM 6.1CVE-2023-3672 · GHSA-r54g-4qq6-chxg · Published 14/07/2023 · updated 17/06/2026

In short

CVE-2023-3672 is a MEDIUM (CVSS 6.1) vulnerability affecting webmention.js (plaidweb), webmention.js.
Chance of exploitation in the next 30 days (EPSS): 0.49%, higher than 42.4% of all vulnerabilities.
Fix: update to 0.5.5 or later.

Package	Affected versions	Patched versions
webmention.js plaidweb	`< 0.5.5`	`0.5.5`
webmention.js npm	`< 0.5.5`	`0.5.5`

webmention.js prior to 0.5.5 is vulnerable to cross-site scripting.

NVD description

Cross-site Scripting (XSS) - DOM in GitHub repository plaidweb/webmention.js prior to 0.5.5.

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