1. Home
  2. Vulnerabilities
  3. CVE-2022-44900
9.1
CRITICAL CVSS 3.1
CVE-2022-44900
SevenZipFile Dir Traversal Arbitrary File Write Vulnerability
Description

A directory traversal vulnerability in the SevenZipFile.extractall() function of the python library py7zr v0.20.0 and earlier allows attackers to write arbitrary files via extracting a crafted 7z file.

INFO

Published Date :

Dec. 6, 2022, 8:15 p.m.

Last Modified :

April 23, 2025, 3:15 p.m.

Remotely Exploit :

Yes !

Source :

[email protected]
Affected Products

The following products are affected by CVE-2022-44900 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 Py7zr_project py7zr
: 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 CRITICAL [email protected]
CVSS 3.1 CRITICAL 134c704f-9b21-4f2e-91b3-4a467353bcc0
Solution
A directory traversal vulnerability in py7zr allows attackers to write arbitrary files; updating the package addresses this issue.
  • Update the affected py7zr package to a version greater than 0.20.0.
  • Upgrade the python-py7zr-doc packages.
Public PoC/Exploit Available at Github

CVE-2022-44900 has a 3 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-2022-44900.

URL Resource
http://packetstormsecurity.com/files/170127/py7zr-0.20.0-Directory-Traversal.html Exploit Third Party Advisory VDB Entry
https://github.com/miurahr/py7zr/commit/1bb43f17515c7f69673a1c88ab9cc72a7bbef406 Patch Third Party Advisory
https://lessonsec.com/cve/cve-2022-44900/ Exploit Third Party Advisory
http://packetstormsecurity.com/files/170127/py7zr-0.20.0-Directory-Traversal.html Exploit Third Party Advisory VDB Entry
https://github.com/miurahr/py7zr/commit/1bb43f17515c7f69673a1c88ab9cc72a7bbef406 Patch Third Party Advisory
https://lessonsec.com/cve/cve-2022-44900/ Exploit 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-2022-44900 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-2022-44900 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
whoforget/CVE-POC

None

Updated: 2 years, 5 months ago
0 stars 2 fork 2 watcher
Born at : April 8, 2023, 6:19 a.m. This repo has been linked 928 different CVEs too.
Profile Photo
k0mi-tg/CVE-POC

None

Updated: 1 year, 7 months ago
20 stars 3 fork 3 watcher
Born at : Feb. 14, 2023, 6:10 p.m. This repo has been linked 921 different CVEs too.
Profile Photo
0xless/CVE-2022-44900-demo-lab

Demo webapp vulnerable to CVE-2022-44900

Python

Updated: 2 years, 7 months ago
1 stars 0 fork 0 watcher
Born at : Jan. 21, 2023, 2:52 p.m. This repo has been linked 1 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-2022-44900 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-2022-44900 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 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Apr. 23, 2025

    Action Type Old Value New Value
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
    Added CWE CWE-22
  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://packetstormsecurity.com/files/170127/py7zr-0.20.0-Directory-Traversal.html
    Added Reference https://github.com/miurahr/py7zr/commit/1bb43f17515c7f69673a1c88ab9cc72a7bbef406
    Added Reference https://lessonsec.com/cve/cve-2022-44900/
  • CVE Modified by [email protected]

    May. 14, 2024

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

    Dec. 09, 2022

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
    Changed Reference Type http://packetstormsecurity.com/files/170127/py7zr-0.20.0-Directory-Traversal.html No Types Assigned http://packetstormsecurity.com/files/170127/py7zr-0.20.0-Directory-Traversal.html Exploit, Third Party Advisory, VDB Entry
    Changed Reference Type https://github.com/miurahr/py7zr/commit/1bb43f17515c7f69673a1c88ab9cc72a7bbef406 No Types Assigned https://github.com/miurahr/py7zr/commit/1bb43f17515c7f69673a1c88ab9cc72a7bbef406 Patch, Third Party Advisory
    Changed Reference Type https://lessonsec.com/cve/cve-2022-44900/ No Types Assigned https://lessonsec.com/cve/cve-2022-44900/ Exploit, Third Party Advisory
    Added CWE NIST CWE-22
    Added CPE Configuration OR *cpe:2.3:a:py7zr_project:py7zr:*:*:*:*:*:python:*:* versions up to (excluding) 0.20.1
  • CVE Modified by [email protected]

    Dec. 07, 2022

    Action Type Old Value New Value
    Added Reference https://lessonsec.com/cve/cve-2022-44900/ [No Types Assigned]
  • CVE Modified by [email protected]

    Dec. 07, 2022

    Action Type Old Value New Value
    Added Reference http://packetstormsecurity.com/files/170127/py7zr-0.20.0-Directory-Traversal.html [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: 9.1
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.

25.52 }} 1.44%

score

0.95973

percentile