The sourceMapURL feature in devtools was missing security checks that would have allowed…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-552.
Summary
The sourceMapURL feature in devtools was missing security checks that would have allowed a webpage to attempt to include local files or other files that should have been inaccessible. This vulnerability affects Firefox < 99.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA Firefox (Mozilla) Fixed in 99
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Mozilla Firefox 99
10 records Highest priority Priority HIGH 1 HIGH, 7 MEDIUM, 2 LOW
Other records, highest priority first
- TI-2022-11068 Improper output encoding in Mozilla FirefoxPriority HIGH 73
- TI-2022-11071 In unusual circumstances, selecting text could cause text selection caching to behave…Priority MEDIUM 62
- TI-2022-11069 Out-of-bounds read in Mozilla ThunderbirdPriority MEDIUM 62
Timeline
- 2026-10-02 Threatist record created from CVE-2022-28283
- 2026-10-03 Alias added: GHSA-vcmf-vf48-7jqp
References
More Mozilla Firefox vulnerabilities
- TI-2024-08981 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.8
- TI-2022-09832 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.6
- TI-2019-08769 Improper input validation in Mozilla Firefox ESR KEVCVSS 3.1CRITICAL 10.0
- TI-2010-03577 Mozilla Firefox 3.5.x through 3.5.14 and 3.6.x through 3.6.11, Thunderbird 3.1.6 before… KEVCVSS 3.1CRITICAL 9.8
- TI-2023-04799 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
- TI-2023-04477 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
Sources
- CVE-2022-28283 · CVE Program
- CVE-2022-28283 · NVD
- FIRST EPSS
- GHSA-vcmf-vf48-7jqp · GitHub Advisory Database · CC BY 4.0
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