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CVE-2020-28480

31
FAUCET Score

CVE-2020-28480 is a critical Prototype Pollution vulnerability affecting JointJS versions prior to 3.3.0, specifically within the util.setByPath function. This flaw allows an unauthenticated attacker to remotely manipulate object prototypes, leading to high impacts on confidentiality, integrity, and availability. Despite its critical CVSS score of 9.8, there is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.3.0CPE matchmatch criteria
cpe:2.3:a:jointjs:jointjs:*:*:*:*:*:*:*:*

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
1.36%
Probability of exploitation in next 30 days
EPSS Percentile
68.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0136 is in the 55th percentile among its peer group of 36,833 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 (1)

npmpatch availablevia ghsa
Product: jointjsFixed in: 3.3.0

Vendor Advisories (1)

npmGHSA-qwp9-52h8-xgg8high

Prototype pollution in JointJS

Jan 20, 2021

References

github.com / clientIO/joint/blob/master/src/util/util.mjs%23L150
Third Party Advisory
github.com / clientIO/joint/pull/1406
Third Party Advisory
snyk.io / vuln/SNYK-JAVA-ORGWEBJARSBOWER-1062037
Third Party Advisory
snyk.io / vuln/SNYK-JAVA-ORGWEBJARSNPM-1062036
Third Party Advisory
snyk.io / vuln/SNYK-JS-JOINTJS-1024444
Third Party Advisory