Unrestricted file upload in Mozilla Firefox ESR
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-434.
Summary
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Mozilla | Firefox ESR | before 68.11 | 68.11 | Patch available | CNA |
- Firefox ESR VendorMozilla Affected before 68.11 Fixed in 68.11 Patch available CNA
Remediation
- Fix · CNA Firefox ESR (Mozilla) Fixed in 68.11
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Mozilla Firefox ESR 68.11
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2020-12325 Given an installed malicious file picker application, an attacker was able to overwrite…Priority LOW 26
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 4 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
Timeline
- 2026-10-02 Threatist record created from CVE-2020-15649
- 2026-10-03 Alias added: GHSA-wg7m-wv28-cvcr
References
More Mozilla Firefox Esr vulnerabilities
- TI-2022-15364 Use after free in Mozilla Firefox CVSS 3.1CRITICAL 9.8
- TI-2022-13633 Out-of-bounds write in Mozilla Thunderbird CVSS 3.1CRITICAL 9.8
- TI-2021-03015 XML injection in Mozilla Firefox ESR CVSS 3.1CRITICAL 10.0
- TI-2022-09755 Protection mechanism failure in Mozilla Firefox CVSS 3.1CRITICAL 9.6
- TI-2022-07009 Protection mechanism failure in Mozilla Firefox CVSS 3.1CRITICAL 9.6
- TI-2023-18834 Use after free in Mozilla Firefox CVSS 3.1HIGH 8.8
Sources
- CVE-2020-15649 · CVE Program
- CVE-2020-15649 · NVD
- FIRST EPSS
- GHSA-wg7m-wv28-cvcr · GitHub Advisory Database · CC BY 4.0
- CVE-2020-15649 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences