Description
A compromised content process could send a message to the parent process that would cause the 'Click to Play' permission prompt to be shown. However, due to lack of validation from the parent process, if the user accepted the permission request an attacker-controlled permission would be granted rather than the 'Click to Play' permission. This vulnerability affects Firefox < 70.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Mozilla | Firefox | before 70 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | firefox | 70.0+build2-0ubuntu1 | — |
| Ubuntu 20.04 LTS | mozjs52 | No fix yet | — |
| Ubuntu 18.04 LTS | firefox | 70.0+build2-0ubuntu0.18.04.1 | USN-4165-1 |
| Ubuntu 18.04 LTS | mozjs38 +1 | No fix yet | — |
| Ubuntu 16.04 LTS | firefox | 70.0+build2-0ubuntu0.16.04.1 | USN-4165-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | MozillaFirefox | 92.0-1.2 | openSUSE-SU-2024:10600-1 |
| openSUSE Tumbleweed | firefox-esr | 128.5.1-1.1 | openSUSE-SU-2024:14572-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | librewolf | 70.0-r0 | — |
| Alpine v3.23 | firefox +1 | 70.0-r0 | — |
| Alpine v3.22 | firefox +1 | 70.0-r0 | — |
| Alpine v3.21 | firefox +1 | 70.0-r0 | — |
| Alpine v3.20 | firefox | 70.0-r0 | — |
Show 8 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | firefox | 70.0-r0 | — |
| Alpine v3.18 | firefox | 70.0-r0 | — |
| Alpine v3.17 | firefox | 70.0-r0 | — |
| Alpine v3.16 | firefox | 70.0-r0 | — |
| Alpine v3.15 | firefox | 70.0-r0 | — |
| Alpine v3.14 | firefox | 70.0-r0 | — |
| Alpine v3.13 | firefox | 70.0-r0 | — |
| Alpine v3.12 | firefox | 70.0-r0 | — |
Advisories 3
- USN-4165-1 firefox vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- openSUSE-SU-2024:10600-1 MozillaFirefox-92.0-1.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:14572-1 firefox-esr-128.5.1-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026