CVE-2020-7748
Prototype Pollution
HIGH
8.1
CVSS Score
Published: October 20, 2020 at 10:25 AM UTC
Updated: June 17, 2026 at 03:25 AM UTC
1 product affected across 1 vendorTs.ed
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Severity
HIGH8.1
Exploit prediction
EPSS 2%
Description
This affects the package @tsed/core before 5.65.7. This vulnerability relates to the deepExtend function which is used as part of the utils directory. Depending on if user input is provided, an attacker can overwrite and pollute the object prototype of a program.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
95%
v < 5.65.7
Affected range stops below 5.65.7, 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:
References (3)
x_refsource_MISCBroken LinkPatchThird Party Advisory
Source: [email protected]
https://github.com/TypedProject/tsed/blob/production/packages/core/src/utils/deepExtends.ts%23L36x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/TypedProject/tsed/commit/1395773ddac35926cf058fc6da9fb8e82266761bx_refsource_MISCExploitPatchThird Party Advisory
Source: [email protected]
https://snyk.io/vuln/SNYK-JS-TSEDCORE-1019382CVSS
- Attack Vector
- NETWORK
- Complexity
- HIGH
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-1321
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