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CVE-2020-15653

MEDIUM
6.5
CVSS Score
Published: August 10, 2020 at 05:43 PM UTC
Updated: June 17, 2026 at 02:56 AM UTC
4 products affected across 2 vendorsUbuntu LinuxFirefoxThunderbird

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Severity
MEDIUM6.5
Exploit prediction
EPSS 1%

Description

An iframe sandbox element with the allow-popups flag could be bypassed when using noopener links. This could have led to security issues for websites relying on sandbox configurations that allowed popups and hosted arbitrary content. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1.

Affected

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

Ubuntu Linux· Canonicalrubygems
95%
16.0418.0420.04
Firefox· Mozilla
95%
v < 79v < 79.0
Affected range stops below 79, so it looks safe — our inference, not a vendor statement
Affected range stops below 79.0, so it looks safe — our inference, not a vendor statement
Firefox ESR· Mozilla
95%
v < 78.1
Affected range stops below 78.1, so it looks safe — our inference, not a vendor statement
Thunderbird· Mozilla
95%
v < 78.1
Affected range stops below 78.1, so it looks safe — our inference, not a vendor statement

References (6)

Vendor Advisoryx_refsource_SUSEThird Party Advisory
Source: [email protected]
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00025.html
x_refsource_MISCIssue TrackingPermissions RequiredVendor Advisory
Source: [email protected]
https://bugzilla.mozilla.org/show_bug.cgi?id=1521542
Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
Source: [email protected]
https://usn.ubuntu.com/4443-1/
x_refsource_MISCVendor Advisory
Source: [email protected]
https://www.mozilla.org/security/advisories/mfsa2020-30/
x_refsource_MISCVendor Advisory
Source: [email protected]
https://www.mozilla.org/security/advisories/mfsa2020-32/
x_refsource_MISCVendor Advisory
Source: [email protected]
https://www.mozilla.org/security/advisories/mfsa2020-33/

CVSS

6.5MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-Other

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