CVE-2023-34457CWE-20

MechanicalSoup vulnerable to malicious web server reading arbitrary files on client using file input inside HTML form

Medium · published July 5, 2023

CVSS v3.1
5.9
EPSS
1%
Percentile
64.9
In the wild
Unconfirmed
What it is

MechanicalSoup is a Python library for automating interaction with websites. Starting in version 0.2.0 and prior to version 1.3.0, a malicious web server can read arbitrary files on the client using a `<input type="file" ...>` inside HTML form. All users of MechanicalSoup's form submission are affected, unless they took very specific (and manual) steps to reset HTML form field values. Version 1.3.0 contains a patch for this issue.

The record
Technical detail
CVSS v3.1
5.9 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.01082 · 64.9th percentile
Weakness
CWE-20 · Improper Input Validation
Published
2023-07-05T19:25Z
EPSS history
Timeline
  • 05 JUL 19:25Z
    MechanicalSoup vulnerable to malicious web server reading arbitrary files on client using file input inside HTML form
    cvelistv5