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CVE-2020-28470

22
FAUCET Score

CVE-2020-28470 is a Cross-Site Scripting (XSS) vulnerability affecting versions of the @scullyio/scully package prior to 1.0.9. The vulnerability arises from the insecure serialization of transfer state using JSON.stringify() directly into the HTML, allowing for injection of malicious scripts. With a CVSS score of 6.1 (Medium), it requires user interaction and can lead to low impact on confidentiality and integrity. There is no evidence of active exploitation, public exploit code, or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.0.9CPE matchmatch criteria
cpe:2.3:a:scully:scully:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.3HIGH

CVSS:3.1/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
3.1

Exploit Intelligence

EPSS Score
0.83%
Probability of exploitation in next 30 days
EPSS Percentile
53.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0083 is in the 62nd percentile among its peer group of 26,221 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 (3)

github_advisorypatch availablevia nvd_reference
View patch
npmpatch availablevia ghsa
Product: @scullyio/scullyFixed in: 1.0.9
npmpatch availablevia ghsa
Product: @scullyio/ng-libFixed in: 1.0.1

Vendor Advisories (1)

npmGHSA-r96p-v3cr-gfv8high

Cross-site Scripting (XSS) in @scullyio/scully

Apr 13, 2021

References

github.com / scullyio/scully/pull/1182
PatchVendor Advisory
snyk.io / vuln/SNYK-JS-SCULLYIOSCULLY-1055829
Third Party Advisory