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CVE-2020-5258

22
FAUCET Score

CVE-2020-5258 describes a Prototype Pollution vulnerability in the deepCopy method of the dojo NPM package, affecting products like Debian, Linux Foundation, and Oracle. This high-severity vulnerability (CVSS 7.7) allows an attacker to inject properties into JavaScript object prototypes, potentially leading to high impact on confidentiality and integrity, though it requires user interaction and high attack complexity. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.11.10CPE matchmatch criteria
cpe:2.3:a:linuxfoundation:dojo:*:*:*:*:*:node.js:*:*
>= 1.12.0, < 1.12.8CPE matchmatch criteria
cpe:2.3:a:linuxfoundation:dojo:*:*:*:*:*:node.js:*:*
>= 1.13.0, < 1.13.7CPE matchmatch criteria
cpe:2.3:a:linuxfoundation:dojo:*:*:*:*:*:node.js:*:*
>= 1.14.0, < 1.14.6CPE matchmatch criteria
cpe:2.3:a:linuxfoundation:dojo:*:*:*:*:*:node.js:*:*
>= 1.15.0, < 1.15.3CPE matchmatch criteria
cpe:2.3:a:linuxfoundation:dojo:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 3.1

7.7HIGH

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
1.3
Impact Score
5.8
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.99%
Probability of exploitation in next 30 days
EPSS Percentile
89.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0399 is in the 96th percentile among its peer group of 102 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 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 (8)

github_advisorypatch availablevia nvd_reference
View patch
npmpatch availablevia ghsa
Product: dojoFixed in: 1.11.10
npmpatch availablevia ghsa
Product: dojoFixed in: 1.12.8
npmpatch availablevia ghsa
Product: dojoFixed in: 1.13.7
npmpatch availablevia ghsa
Product: dojoFixed in: 1.14.6
npmpatch availablevia ghsa
Product: dojoFixed in: 1.15.3
npmpatch availablevia ghsa
Product: dojoFixed in: 1.16.2
oraclepatch availablevia nvd_reference
View patch

Vendor Advisories (2)

npmGHSA-jxfh-8wgv-vfr2high

Prototype pollution in dojo

Mar 10, 2020
redhatCVE-2020-5258Low

dojo: Prototype pollution in deepCopy method could result in code injection

Mar 10, 2020

References

github.com / dojo/dojo/commit/20a00afb68f5587946dc76fbeaa68c39bda2171d
PatchThird Party Advisory
github.com / dojo/dojo/security/advisories/GHSA-jxfh-8wgv-vfr2
ExploitThird Party Advisory
lists.apache.org / thread.html/r3638722360d7ae95f874280518b8d987d799a76df7a9cd78eac33a1b%40%3Cusers.qpid.apache.org%3E
lists.apache.org / thread.html/r665fcc152bd0fec9f71511a6c2435ff24d3a71386b01b1a6df326fd3%40%3Cusers.qpid.apache.org%3E
lists.apache.org / thread.html/rf481b3f25f05c52ba4e24991a941c1a6e88d281c6c9360a806554d00%40%3Cusers.qpid.apache.org%3E
lists.debian.org / debian-lts-announce/2020/03/msg00012.html
Mailing ListThird Party Advisory
oracle.com / security-alerts/cpujan2022.html
PatchThird Party Advisory
oracle.com / security-alerts/cpujul2020.html
Third Party Advisory
oracle.com / /security-alerts/cpujul2021.html
PatchThird Party Advisory
oracle.com / security-alerts/cpujul2022.html
oracle.com / security-alerts/cpuoct2021.html
PatchThird Party Advisory