CVE-2026-0887
Clickjacking issue, information disclosure in the PDF Viewer component
- State
- Published
- Severity
- 4.3 Medium
- Published
- Jan 13, 2026
- Updated
- Apr 13, 2026
- Reserved
- Jan 13, 2026
Description
Clickjacking issue, information disclosure in the PDF Viewer component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 4.3 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N | CISA-ADP |
Weaknesses
- CWE-497 Exposure of Sensitive System Information to an Unauthorized Control Sphere
Affected Products
| Product | Versions |
|---|---|
FirefoxMozilla |
|
ThunderbirdMozilla |
|
References
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