Prototype Pollution in Xml2js Project
CVE-2023-0842
xml2js version 0.4.23 allows an external attacker to edit or add new properties to an object. This is possible because the application does not properly validate incoming JSON keys, thus allowing the __proto__ property to be edited.
Vulnerability class: Prototype Pollution
EPSS: 0.014 (69.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.
Affected products
- Xml2js_project Xml2js — versions 0.4.23
- N/a Xml2js — versions 0.4.23
Weakness classification (CWE)
Public proof-of-concept exploits
References
- help@fluidattacks.com (Exploit, Third Party Advisory, third-party-advisory)
- help@fluidattacks.com (Product, product)
- help@fluidattacks.com (mailing-list)
- help@fluidattacks.com (patch)
Frequently asked questions
- What is CVE-2023-0842?
- CVE-2023-0842 is a medium-severity vulnerability in Xml2js Project, classified under Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution). CVSS score: 5.3/10. Published 2023-04-05.
- How severe is CVE-2023-0842?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2023-0842 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.