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CVE-2023-3672

20
FAUCET Score

CVE-2023-3672 is a DOM-based Cross-site Scripting (XSS) vulnerability affecting plaidweb/webmention.js versions prior to 0.5.5. Rated Medium with a CVSS score of 6.1, this vulnerability requires user interaction (UI:R) and could lead to limited confidentiality and integrity impacts (C:L/I:L) if exploited. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.5.5CPE matchmatch criteria
cpe:2.3:a:plaidweb:webmention.js:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.3HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
3.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.49%
Probability of exploitation in next 30 days
EPSS Percentile
39.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0049 is in the 41st percentile among its peer group of 26,236 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
npmpatch availablevia ghsa
Product: webmention.jsFixed in: 0.5.5

Vendor Advisories (1)

npmGHSA-r54g-4qq6-chxghigh

webmention.js Cross-site Scripting vulnerability

Jul 14, 2023

References

github.com / plaidweb/webmention.js/commit/3551b66b3e40da37fee89ecf72930c5efdc53011
Patch
huntr.dev / bounties/75cfb7ad-a75f-45ff-8688-32a9c55179aa
ExploitThird Party Advisory