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CVE-2020-6798

6.1 · MEDIUM

If a template tag was used in a select tag, the parser could be confused and allow JavaScript parsing and execution when it should not be allowed.

Published Mar 2, 2020CWE-79EPSS 2.13%

Overview

CVE-2020-6798 is a medium-severity vulnerability. It was published on March 2, 2020 and has a CVSS 3.1 base score of 6.1 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.1, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

If a template tag was used in a select tag, the parser could be confused and allow JavaScript parsing and execution when it should not be allowed. A site that relied on the browser behaving correctly could suffer a cross-site scripting vulnerability as a result. In general, this flaw cannot be exploited through email in the Thunderbird product because scripting is disabled when reading mail, but is potentially a risk in browser or browser-like contexts. This vulnerability affects Thunderbird < 68.5, Firefox < 73, and Firefox < ESR68.5.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refbugzilla.mozilla.org/show_bug.cgi?id=1602944Refsecurity.gentoo.org/glsa/202003-02Refsecurity.gentoo.org/glsa/202003-10Refusn.ubuntu.com/4278-2/Refusn.ubuntu.com/4328-1/Refusn.ubuntu.com/4335-1/Refwww.mozilla.org/security/advisories/mfsa2020-05/Refwww.mozilla.org/security/advisories/mfsa2020-06/Refwww.mozilla.org/security/advisories/mfsa2020-07/Refbugzilla.mozilla.org/show_bug.cgi?id=1602944

How CyberStrike helps

Frequently asked questions

What is CVE-2020-6798?

CVE-2020-6798 is a medium-severity vulnerability. It was published on March 2, 2020 and has a CVSS 3.1 base score of 6.1 (MEDIUM).

How severe is CVE-2020-6798?

This vulnerability has a CVSS 3.1 base score of 6.1, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2020-6798?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2020-6798?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2020-6798 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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