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CVE-2023-6209

Date: November 21, 2023

Relative URLs starting with three slashes were incorrectly parsed, and a path-traversal "/../" part in the path could be used to override the specified host. This could contribute to security problems in web sites. This vulnerability affects Firefox < 120, Firefox ESR < 115.5.0, and Thunderbird < 115.5.

Language: C++

Severity Score

Related Resources (10)

https://nvd.nist.gov/vuln/detail/CVE-2023-6209
https://bugzilla.mozilla.org/show_bug.cgi?id=1858570
https://www.mozilla.org/security/advisories/mfsa2023-49/
https://www.debian.org/security/2023/dsa-5561
https://lists.debian.org/debian-lts-announce/2023/11/msg00030.html
https://security-tracker.debian.org/tracker/CVE-2023-6209
https://www.mozilla.org/security/advisories/mfsa2023-50/
https://www.mozilla.org/security/advisories/mfsa2023-52/
https://lists.debian.org/debian-lts-announce/2023/11/msg00017.html
https://www.mend.io/vulnerability-database/CVE-2023-6209

Severity Score

Weakness Type (CWE)

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CWE-22

CVSS v3.1

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

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