CVE-2023-45811

Synchrony deobfuscator is a javascript cleaner & deobfuscator. A `__proto__` pollution vulnerability exists in versions before v2.4.4. Successful exploitation could lead to arbitrary code execution. A `__proto__` pollution vulnerability exists in the `LiteralMap` transformer allowing crafted input to modify properties in the Object prototype. A fix has been released in `deobfuscator@2.4.4`. Users are advised to upgrade. Users unable to upgrade should launch node with the [--disable-proto=delete][disable-proto] or [--disable-proto=throw][disable-proto] flags

CVSS v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.4 / Impact : 6.0

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://github.com/relative/synchrony/commit/b583126be94c4db7c5a478f1c5204bfb4162cf40	Patch
https://github.com/relative/synchrony/security/advisories/GHSA-jg82-xh3w-rhxx	Exploit Vendor Advisory
https://github.com/relative/synchrony/security/advisories/src/transformers/literalmap.ts	Broken Link
https://github.com/relative/synchrony/commit/b583126be94c4db7c5a478f1c5204bfb4162cf40	Patch
https://github.com/relative/synchrony/security/advisories/GHSA-jg82-xh3w-rhxx	Exploit Vendor Advisory
https://github.com/relative/synchrony/security/advisories/src/transformers/literalmap.ts	Broken Link

Configurations

Configuration 1 (hide)

cpe:2.3:a:relative:synchrony:*:*:*:*:*:node.js:*:*

History

22 Jul 2025, 15:06

Type	Values Removed	Values Added
CPE	cpe:2.3:a:relative:synchrony::::::nodejs::*	cpe:2.3:a:relative:synchrony::::::node.js::*

Information

Published : 2023-10-17 23:15

Updated : 2025-07-22 15:06

NVD link : CVE-2023-45811

Mitre link : CVE-2023-45811

CVE.ORG link : CVE-2023-45811

JSON object : View

Products Affected

relative

synchrony

CWE

CWE-1321

Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

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