CVE-2020-27748

MEDIUM
6.5
CVSS Score
Published: June 1, 2021 at 01:15 PM UTC
Updated: June 17, 2026 at 03:09 AM UTC
1 product affected across 1 vendorXdg Utils

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Severity
MEDIUM6.5
Exploit prediction
EPSS 1%

Description

A flaw was found in the xdg-email component of xdg-utils-1.1.0-rc1 and newer. When handling mailto: URIs, xdg-email allows attachments to be discreetly added via the URI when being passed to Thunderbird. An attacker could potentially send a victim a URI that automatically attaches a sensitive file to a new email. If a victim user does not notice that an attachment was added and sends the email, this could result in sensitive information disclosure. It has been confirmed that the code behind this issue is in xdg-email and not in Thunderbird.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≥ 1.1.01.1.0-rc1

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (2)

x_refsource_MISCIssue TrackingThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1899769
x_refsource_MISCExploitIssue TrackingVendor Advisory
https://gitlab.freedesktop.org/xdg/xdg-utils/-/issues/177

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-201

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