CVE-2020-15649

5.5 mediumEPSS 0.7%

Medium (5.5) in mozilla firefox esr. EPSS 0.7% chance of exploitation in the next 30 days.

Given an installed malicious file picker application, an attacker was able to steal and upload local files of their choosing, regardless of the actually files picked. *Note: This issue only affected Firefox for Android. Other operating systems are unaffected.*. This vulnerability affects Firefox ESR < 68.11.

Severity

CVSS 3.1

5.5 medium

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

EPSS: 0.7% chance of exploitation in the next 30 days; higher than 53% of CVEs (scores of 2026-10-31)
CWE: CWE-434
Published: 2020-08-10
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

mozilla:firefox_esr

References

https://bugzilla.mozilla.org/buglist.cgi?bug_id=1475835%2C1652364
https://www.mozilla.org/security/advisories/mfsa2020-31/
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1475835%2C1652364
https://www.mozilla.org/security/advisories/mfsa2020-31/

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