CVE-2021-23444
Prototype Pollution
CRITICAL
9.8
CVSS Score
Published: September 21, 2021 at 04:55 PM UTC
Updated: June 17, 2026 at 03:38 AM UTC
1 product affected across 1 vendorJointjs
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Severity
CRITICAL9.8
Exploit prediction
EPSS 2%
Description
This affects the package jointjs before 3.4.2. A type confusion vulnerability can lead to a bypass of CVE-2020-28480 when the user-provided keys used in the path parameter are arrays in the setByPath function.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
95%
v < 3.4.2
Affected range stops below 3.4.2, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (6)
x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/clientIO/joint/commit/e5bf89efef6d5ea572d66870ffd86560de7830a8x_refsource_MISCThird Party Advisory
Source: [email protected]
https://github.com/clientIO/joint/pull/1514x_refsource_MISCRelease NotesThird Party Advisory
Source: [email protected]
https://github.com/clientIO/joint/releases/tag/v3.4.2x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-1655817x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1655816x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://snyk.io/vuln/SNYK-JS-JOINTJS-1579578CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-843
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