Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 73.0 |
| Mozilla | Firefox Esr | < 68.5.0 |
| Mozilla | Thunderbird | < 68.5.0 |
Related Weaknesses (CWE)
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1602944Permissions Required
- https://security.gentoo.org/glsa/202003-02
- https://security.gentoo.org/glsa/202003-10
- https://usn.ubuntu.com/4278-2/
- https://usn.ubuntu.com/4328-1/
- https://usn.ubuntu.com/4335-1/
- https://www.mozilla.org/security/advisories/mfsa2020-05/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-06/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-07/Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1602944Permissions Required
- https://security.gentoo.org/glsa/202003-02
- https://security.gentoo.org/glsa/202003-10
- https://usn.ubuntu.com/4278-2/
- https://usn.ubuntu.com/4328-1/
- https://usn.ubuntu.com/4335-1/
FAQ
What is CVE-2020-6798?
CVE-2020-6798 is a vulnerability with a CVSS score of 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. A site that relied on the browser behaving correctly ...
How severe is CVE-2020-6798?
CVE-2020-6798 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-6798?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox, Mozilla Firefox Esr, Mozilla Thunderbird.