CVE-2023-34457
CVSS v3
7.5
HIGH
EPSS Score
1.1 %
exploit probability, as of 2026-10-19
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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Affected and fixed versions
Packages from OSV.dev and products from the vendors' CSAF advisories.
version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.
Packages
- mechanicalsoupPyPIall versions · fixed in 1.3.0
Vendor advisories
- CVE-2023-34457 Red Hat Product Security
MechanicalSoup: Malicious web server can read arbitrary files on client using file input inside HTML form
Description
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.
Technical details
- Published
- 2023-07-05
Frequently asked questions
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