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CVE-2021-23968 Details

Description

If Content Security Policy blocked frame navigation, the full destination of a redirect served in the frame was reported in the violation report; as opposed to the original frame URI. This could be used to leak sensitive information contained in such URIs. This vulnerability affects Firefox < 86, Thunderbird < 78.8, and Firefox ESR < 78.8.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:4.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://bugzilla.mozilla.org/show_bug.cgi?id=1687342	CVE	Issue TrackingPermissions RequiredVendor Advisory
https://lists.debian.org/debian-lts-announce/2021/03/msg00000.html	CVE	Mailing ListThird Party Advisory
https://security.gentoo.org/glsa/202104-09	CVE	Third Party Advisory
https://security.gentoo.org/glsa/202104-10	CVE	Third Party Advisory
https://www.debian.org/security/2021/dsa-4866	CVE	Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2021-07/	CVE	Release NotesVendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-08/	CVE	Release NotesVendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-09/	CVE	Release NotesVendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1687342	[email protected]	Issue TrackingPermissions RequiredVendor Advisory
https://lists.debian.org/debian-lts-announce/2021/03/msg00000.html	[email protected]	Mailing ListThird Party Advisory
https://security.gentoo.org/glsa/202104-09	[email protected]	Third Party Advisory
https://security.gentoo.org/glsa/202104-10	[email protected]	Third Party Advisory
https://www.debian.org/security/2021/dsa-4866	[email protected]	Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2021-07/	[email protected]	Release NotesVendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-08/	[email protected]	Release NotesVendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-09/	[email protected]	Release NotesVendor Advisory

see all 16 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-209	Generation of Error Message Containing Sensitive Information	[email protected]

Affected Products

Product	Versions
mozilla firefox	< 86.0
CPE cpe:2.3:a:mozilla:firefox:::::::: Remediation No remediation found in references.
mozilla firefox esr	< 78.8
CPE cpe:2.3:a:mozilla:firefox_esr:::::::: Remediation No remediation found in references.
mozilla thunderbird	< 78.8
CPE cpe:2.3:a:mozilla:thunderbird:::::::: Remediation No remediation found in references.
debian debian linux	9.0 10.0
CPE cpe:2.3:o:debian:debian_linux:9.0:::::::* cpe:2.3:o:debian:debian_linux:10.0:::::::* Remediation No remediation found in references.

Change History

8 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
May 27, 2022	Modified Analysis	[email protected]
May 1, 2021	CVE Modified	[email protected]
Mar 3, 2021	Initial Analysis	[email protected]
Mar 2, 2021	CVE Modified	[email protected]
Mar 1, 2021	CVE Modified	[email protected]

CVE-2021-23968 Details

Description

Metrics

References to Advisories, Solutions, and Tools

Weakness Enumeration

Affected Products

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

Change History

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