CVE-2024-9391
A user who enables full-screen mode on a specially crafted web page could potentially be...
A user who enables full-screen mode on a specially crafted web page could potentially be prevented from exiting full screen mode. This may allow spoofing of other sites as the address bar is no longer visible. This bug only affects Firefox Focus for Android. Other versions of Firefox are unaffected. This vulnerability affects Firefox < 131.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
A user who enables full-screen mode on a specially crafted web page could potentially be prevented from exiting full screen mode. This may allow spoofing of other sites as the address bar is no longer visible. This bug only affects Firefox Focus for Android. Other versions of Firefox are unaffected. This vulnerability affects Firefox < 131.
- Record
CVE-2024-9391- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N - Weakness
- CWE-290
- Updated
- 2026-11-02
EUVDEUVD-2024-50307
A user who enables full-screen mode on a specially crafted web page could potentially be prevented from exiting full screen mode. This may allow spoofing of other sites as the address bar is no longer visible. This bug only affects Firefox Focus for Android. Other versions of Firefox are unaffected. This vulnerability affects Firefox < 131.
- Record
EUVD-2024-50307- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-p5hw-4fxj-g4x6
A user who enables full-screen mode on a specially crafted web page could potentially be...
A user who enables full-screen mode on a specially crafted web page could potentially be prevented from exiting full screen mode. This may allow spoofing of other sites as the address bar is no longer visible. This bug only affects Firefox Focus for Android. Other versions of Firefox are unaffected. This vulnerability affects Firefox < 131.
- Record
GHSA-p5hw-4fxj-g4x6- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N - Weakness
- CWE-290
- Updated
- 2026-11-02
NVD
A user who enables full-screen mode on a specially crafted web page could potentially be prevented from exiting full screen mode. This may allow spoofing of other sites as the address bar is no longer visible. This bug only affects Firefox Focus for Android. Other versions of Firefox are unaffected. This vulnerability affects Firefox < 131.
- Record
CVE-2024-9391- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N - Weakness
- CWE-290
- Updated
- 2026-11-02
OSVopenSUSE-SU-2024:14385-1 No score
MozillaFirefox-131.0-1.1 on GA media
These are all security issues fixed in the MozillaFirefox-131.0-1.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:14385-1- Updated
- 2026-11-02
OSVopenSUSE-SU-2026:11373-1 No score
firefox-esr-153.0-1.1 on GA media
These are all security issues fixed in the firefox-esr-153.0-1.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2026:11373-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
MozillaFirefoxopenSUSE:Tumbleweed From an advisory covering 13 CVEs |
before 131.0-1.1 | 131.0-1.1 |
firefox-esropenSUSE:Tumbleweed From an advisory covering 228 CVEs |
before 153.0-1.1 | 153.0-1.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2024-9391 is a medium vulnerability (CVSS 6.5) in Mozilla Firefox, published October 1, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.28%, the 21st percentile. No source names a fixed version.
References
bugzilla.mozilla.org/show_bug.cgi?id=1892407
mozilla.org/security/advisories/mfsa2024-46
nvd.nist.gov/vuln/detail/CVE-2024-9391
github.com/advisories/GHSA-p5hw-4fxj-g4x6
lists.opensuse.org/archives/list/[email protected]/thread/N4JP3GXA5W44ZPKFH3YRRO2ZB77WGE4V
suse.com/security/cve/CVE-2024-9391
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Left out here: 43 references. The JSON record has them.