CVE-2023-26920

MEDIUM EPSS 63.0%
Published Dec 12, 20232y ago · Modified Jun 17, 20262w ago
6.5 CVSS 3.1
Medium
Find Similar
Published Dec 12, 2023 2y ago
Last Modified Jun 17, 2026 2w ago

Description

fast-xml-parser before 4.1.2 allows __proto__ for Prototype Pollution.

CVSS Details

Base Score
6.5
Exploitability
2.8
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity None
Availability None

Threat Intelligence

EPSS Exploit Probability
63.0% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-1321

Affected Products 1

VendorProductVersionRange
naturalintelligencefast_xml_parser* <4.1.2

References 3

  • gist.github.com https://gist.github.com/Sudistark/a5a45bd0804d522a1392cb5023aa7ef7
    Exploit
  • github.com https://github.com/NaturalIntelligence/fast-xml-parser/commit/2b032a4f799c63d83991e4f992f1c68e4dd05804
    Patch
  • github.com https://github.com/advisories/GHSA-793h-6f7r-6qvm
    Third Party Advisory

Remediation

  • github.com https://github.com/NaturalIntelligence/fast-xml-parser/commit/2b032a4f799c63d83991e4f992f1c68e4dd05804
    Patch