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6.5
MEDIUM CVSS 3.1
CVE-2023-26920
Fast-XML-Parser Prototype Pollution Vulnerability
Description

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

INFO

Published Date :

Dec. 12, 2023, 5:15 p.m.

Last Modified :

Nov. 21, 2024, 7:52 a.m.

Remotely Exploit :

Yes !

Source :

[email protected]
Affected Products

The following products are affected by CVE-2023-26920 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Naturalintelligence fast_xml_parser
: Total Affected Vendor : 1 | Products : 1
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 MEDIUM [email protected]
Public PoC/Exploit Available at Github

CVE-2023-26920 has a 2 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2023-26920.

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

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-26920 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2023-26920 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Profile Photo
seal-community/patches

A centralized repository of standalone security patches for open source libraries.

appsec backport cve devsecops fix hotfix open-source patch protection remediation seal security update upgrade vulnerability

Updated: 1 year, 2 months ago
182 stars 0 fork 0 watcher
Born at : July 30, 2023, 4:46 p.m. This repo has been linked 265 different CVEs too.
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CumulusDS/github-vulnerable-repos

CLI to get a list of GitHub repos with open security alerts

JavaScript

Updated: 3 months ago
1 stars 2 fork 2 watcher
Born at : July 31, 2020, 8:05 p.m. This repo has been linked 2 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2023-26920 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2023-26920 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://gist.github.com/Sudistark/a5a45bd0804d522a1392cb5023aa7ef7
    Added Reference https://github.com/advisories/GHSA-793h-6f7r-6qvm
    Added Reference https://github.com/NaturalIntelligence/fast-xml-parser/commit/2b032a4f799c63d83991e4f992f1c68e4dd05804
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Dec. 14, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
    Changed Reference Type https://gist.github.com/Sudistark/a5a45bd0804d522a1392cb5023aa7ef7 No Types Assigned https://gist.github.com/Sudistark/a5a45bd0804d522a1392cb5023aa7ef7 Exploit
    Changed Reference Type https://github.com/advisories/GHSA-793h-6f7r-6qvm No Types Assigned https://github.com/advisories/GHSA-793h-6f7r-6qvm Third Party Advisory
    Changed Reference Type https://github.com/NaturalIntelligence/fast-xml-parser/commit/2b032a4f799c63d83991e4f992f1c68e4dd05804 No Types Assigned https://github.com/NaturalIntelligence/fast-xml-parser/commit/2b032a4f799c63d83991e4f992f1c68e4dd05804 Patch
    Added CWE NIST CWE-1321
    Added CPE Configuration OR *cpe:2.3:a:naturalintelligence:fast_xml_parser:*:*:*:*:*:*:*:* versions up to (excluding) 4.1.2
  • CVE Received by [email protected]

    Dec. 12, 2023

    Action Type Old Value New Value
    Added Description fast-xml-parser before 4.1.2 allows __proto__ for Prototype Pollution.
    Added Reference MITRE https://gist.github.com/Sudistark/a5a45bd0804d522a1392cb5023aa7ef7 [No types assigned]
    Added Reference MITRE https://github.com/advisories/GHSA-793h-6f7r-6qvm [No types assigned]
    Added Reference MITRE https://github.com/NaturalIntelligence/fast-xml-parser/commit/2b032a4f799c63d83991e4f992f1c68e4dd05804 [No types assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 6.5
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.23 }} 0.06%

score

0.45572

percentile