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CVE-2022-4055

When xdg-mail is configured to use thunderbird for mailto URLs, improper parsing of the URL can lead to additional headers being passed to…

High7.4EPSS 0.69%
Published
Updated
Reserved
Assigned by
redhat

Description

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.

Scores

CVSS scores of CVE-2022-4055, by who scored it
Scored byCVSSScoreVector
CISA-ADPADP (enrichment)3.1High7.4CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N
NVDNVD · Modified3.1High7.4CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N
EPSS (exploitation in 30 days)
0.69% · top 47% of all CVEs (6 Nov 2026)
CISA SSVC
Exploitation: poc · Automatable: no · Technical impact: partial
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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.4.

Weakness

Affected products

  • xdg-utils

    • affected xdg-utils 1.1.0 to and including 1.1.3

References (1)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .