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CVE-2022-4055

Date: November 18, 2022

When xdg-mail is configured to use thunderbird for mailto URLs, improper parsing of the URL can lead to additional headers being passed to thunderbird that should not be included per RFC 2368. An attacker can use this method to create a mailto URL that looks safe to users, but will actually attach files when clicked.

Severity Score

Related Resources (5)

https://gitlab.freedesktop.org/xdg/xdg-utils/-/issues/205#note_1494267
https://access.redhat.com/security/cve/CVE-2022-4055
https://security-tracker.debian.org/tracker/CVE-2022-4055
https://nvd.nist.gov/vuln/detail/CVE-2022-4055
https://www.mend.io/vulnerability-database/CVE-2022-4055

Severity Score

Weakness Type (CWE)

Improper Neutralization of Expression/Command Delimiters

CWE-146

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): CHANGED
Confidentiality (C): NONE
Integrity (I): HIGH
Availability (A): NONE

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