CVE-2015-0802
MediumPublic exploitMozilla: Windows can retain access to privileged content on navigation to unprivileged pages (MFSA 2015-42)
Published Mar 31, 2015 · Updated Apr 22, 2026 · Also known as UBUNTU-CVE-2015-0802
Key Facts
Patch immediately- CVE-2015-0802 is a medium-severity vulnerability (CVSS 5.0 v2) affecting Firefox (Mozilla), Ubuntu Linux (Canonical), Opensuse and 10 more products.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 67% probability of exploitation in the next 30 days.
- Fixed versions are available, including Firefox 37.0+build2-0ubuntu0.14.04.1, Firefox 36.0.4, firefox-esr 128.5.1-1.1.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v2
5.0
AV:N/AC:L/Au:N/C:N/I:P/A:N
EPSS (30-day exploit likelihood)
67%
Higher than 99.3% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2015-0802 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
Mozilla Firefox before 37.0 relies on docshell type information instead of page principal information for Window.webidl access control, which might allow remote attackers to execute arbitrary JavaScript code with chrome privileges via certain content navigation that leverages the reachability of a privileged window with an unintended persistence of access to restricted internal methods.
Affected Products
17 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| FirefoxMozilla | See advisory | 36.0.4 |
| Ubuntu LinuxCanonical | 12.04, 14.04, 14.10 | n/a |
| OpensuseOpensuse | 13.1, 13.2 | n/a |
| firefox-esr-branding-upstreamsuse | See advisory | 128.5.1-1.1 |
| firefox-esrsuse | See advisory | 128.5.1-1.1 |
Patched Releases
Firefox
37.0+build2-0ubuntu0.14.04.1, 36.0.4
firefox-esr
128.5.1-1.1
firefox-esr-branding-upstream
128.5.1-1.1
firefox-esr-translations-common
128.5.1-1.1
firefox-esr-translations-other
128.5.1-1.1
MozillaFirefox
50.1.0-1.1
MozillaFirefox-branding-upstream
50.1.0-1.1
MozillaFirefox-buildsymbols
50.1.0-1.1
MozillaFirefox-devel
50.1.0-1.1
MozillaFirefox-translations-common
50.1.0-1.1
MozillaFirefox-translations-other
50.1.0-1.1
Timeline
Publicly disclosed
Mar 31, 2015
Last updated
Apr 22, 2026
Weakness Type
- CWE-250 Execution with Unnecessary Privileges
- CWE-264
References
- advisoryhttps://ubuntu.com/security/CVE-2015-0801
- advisoryhttps://ubuntu.com/security/CVE-2015-0802
- advisoryhttps://ubuntu.com/security/CVE-2015-0803
- advisoryhttps://ubuntu.com/security/CVE-2015-0804
- advisoryhttps://ubuntu.com/security/CVE-2015-0805
FAQ
Common Questions.
Mozilla Firefox before 37.0 relies on docshell type information instead of page principal information for Window.webidl access control, which might allow remote attackers to execute arbitrary JavaScript code with chrome privileges via certain content navigation that leverages the reachability of a privileged window wi…
Affected: Firefox (Mozilla); Ubuntu Linux (Canonical) versions 12.04, 14.04, 14.10; Opensuse versions 13.1, 13.2, among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Firefox 37.0+build2-0ubuntu0.14.04.1, Firefox 36.0.4, firefox-esr 128.5.1-1.1.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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