CVE-2023-3672 json
Cross-site Scripting (XSS) - DOM in plaidweb/webmention.js
published 2023-07-14 3 y ago modified 2026-06-17 4 mo ago also GHSA-r54g-4qq6-chxg , EUVD-2023-2134
- cvss
- 7.3
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 42%
- public exploits
- 0
- none known
Summary
Cross-site Scripting (XSS) - DOM in GitHub repository plaidweb/webmention.js prior to 0.5.5.
Patch / fix
- npm webmention.js 0.5.5
- plaidweb plaidweb/webmention.js 0.5.5
- plaidweb webmention.js 0.5.5
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.49% chance of exploitation in the next 30 days, higher than 42% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- huntr.dev https://huntr.dev/bounties/75cfb7ad-a75f-45ff-8688-32a9c55179aa referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 7.3 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L |
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| GitHub | 3.0 | 7.3 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | webmention.js | <0.5.5 |
0.5.5 |
Affected products
- plaidweb plaidweb/webmention.js
- plaidweb webmention.js
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/plaidweb/webmention.js/commit/3551b66b3e40da37fee89ecf72930c5efdc53011
web, patch
-
huntr.dev
/bounties/75cfb7ad-a75f-45ff-8688-32a9c55179aa
web, exploit, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2023-3672
advisory
-
github.com
/PlaidWeb/webmention.js/blob/9457e71433c0d2430bbe767ecc5b5837140d0ee4/static/webmention.js#L330
web
-
github.com
/plaidweb/webmention.js
package
Sources
- CVE List CVE-2023-3672
- GitHub Advisory GHSA-r54g-4qq6-chxg
- NVD CVE-2023-3672
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.