CVE-2019-17001

6.1 mediumEPSS 0.8%

Medium (6.1) in mozilla firefox. EPSS 0.8% chance of exploitation in the next 30 days.

A Content-Security-Policy that blocks in-line scripts could be bypassed using an object tag to execute JavaScript in the protected document (cross-site scripting). This is a separate bypass from CVE-2019-17000.*Note: This flaw only affected Firefox 69 and was not present in earlier versions.*. This vulnerability affects Firefox < 70.

Severity

CVSS 3.1

6.1 medium

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS: 0.8% chance of exploitation in the next 30 days; higher than 56% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2020-01-08
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

mozilla:firefox

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1587976
https://www.mozilla.org/security/advisories/mfsa2019-34/
https://bugzilla.mozilla.org/show_bug.cgi?id=1587976
https://www.mozilla.org/security/advisories/mfsa2019-34/

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