Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2021-23370

29
FAUCET Score

CVE-2021-23370 is a critical vulnerability affecting the swiper package prior to version 6.5.1. With a CVSS score of 9.8, it presents a severe risk as an unauthenticated attacker can remotely achieve high impact to confidentiality, integrity, and availability with low attack complexity. Despite its critical severity, there is currently no evidence of active exploitation, public exploit code, or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 6.5.1CPE matchmatch criteria
cpe:2.3:a:swiperjs:swiper:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.20%
Probability of exploitation in next 30 days
EPSS Percentile
80.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0220 is in the 70th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 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: swiperFixed in: 6.5.1

Vendor Advisories (1)

npmGHSA-p3hc-fv2j-rp68critical

Prototype Pollution in swiper

May 10, 2021

References

github.com / nolimits4web/swiper/commit/9dad2739b7474f383474773d5ab898a0c29ac178
PatchThird Party Advisory
snyk.io / vuln/SNYK-JAVA-ORGWEBJARS-1244698
ExploitThird Party Advisory
snyk.io / vuln/SNYK-JAVA-ORGWEBJARSBOWER-1244699
ExploitThird Party Advisory
snyk.io / vuln/SNYK-JAVA-ORGWEBJARSBOWERGITHUBNOLIMITS4WEB-1244697
ExploitThird Party Advisory
snyk.io / vuln/SNYK-JAVA-ORGWEBJARSNPM-1244696
ExploitThird Party Advisory
snyk.io / vuln/SNYK-JS-SWIPER-1088062
ExploitThird Party Advisory