Vulnerability · Published Jun 2, 2023 · Assigned by mozilla
CVE-2023-25730
Medium 5.4
In plain English
A medium-severity security flaw in Firefox from Mozilla. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 46% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)5.4Medium
Exploit odds (30 days)0.5%top 54.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A background script invoking <code>requestFullscreen</code> and then blocking the main thread could force the browser into fullscreen mode indefinitely, resulting in potential user confusion or spoofing attacks. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | firefox | 102.8.0-2.el8_7.alma | ALSA-2023:0808 |
| AlmaLinux:9 | firefox | 102.8.0-2.el9_1.alma | ALSA-2023:0810 |
| AlmaLinux:9 | firefox-x11 | 102.8.0-2.el9_1.alma | ALSA-2023:0810 |
| AlmaLinux:8 | thunderbird | 102.8.0-2.el8_7.alma | ALSA-2023:0821 |
| AlmaLinux:9 | thunderbird | 102.8.0-2.el9_1.alma | ALSA-2023:0824 |
| Alpine:v3.20 | firefox-esr | 102.8.0-r0 | ALPINE-CVE-2023-25730 |
| Alpine:v3.21 | firefox-esr | 102.8.0-r0 | ALPINE-CVE-2023-25730 |
| Alpine:v3.22 | firefox-esr | 102.8.0-r0 | ALPINE-CVE-2023-25730 |
| Alpine:v3.23 | firefox-esr | 102.8.0-r0 | ALPINE-CVE-2023-25730 |
| Debian:12 | firefox-esr | 102.8.0esr-1 | DEBIAN-CVE-2023-25730 |
| Debian:13 | firefox-esr | 102.8.0esr-1 | DEBIAN-CVE-2023-25730 |
| Debian:14 | firefox-esr | 102.8.0esr-1 | DEBIAN-CVE-2023-25730 |
| Debian:12 | thunderbird | 1:102.8.0-1 | DEBIAN-CVE-2023-25730 |
| Debian:13 | thunderbird | 1:102.8.0-1 | DEBIAN-CVE-2023-25730 |
| Debian:14 | thunderbird | 1:102.8.0-1 | DEBIAN-CVE-2023-25730 |
| Rocky Linux:8 | firefox | 0:102.8.0-2.el8_7 | RLSA-2023:0808 |
| Rocky Linux:9 | firefox | 0:102.8.0-2.el9_1 | RLSA-2023:0810 |
| Rocky Linux:8 | thunderbird | 0:102.8.0-2.el8_7 | RLSA-2023:0821 |
| Rocky Linux:9 | thunderbird | 0:102.8.0-2.el9_1 | RLSA-2023:0824 |
| Ubuntu:22.04:LTS | mozjs78 | no fix listed | UBUNTU-CVE-2023-25730 |
| Ubuntu:22.04:LTS | mozjs91 | no fix listed | UBUNTU-CVE-2023-25730 |
| Ubuntu:22.04:LTS | thunderbird | 1:102.8.0+build2-0ubuntu0.22.04.1 | USN-5943-1 |
| Ubuntu:22.04:LTS | thunderbird | 1:102.8.0+build2-0ubuntu0.22.04.1 | UBUNTU-CVE-2023-25730 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | unspecified – before 110 |
| Mozilla | Thunderbird | unspecified – before 102.8 |
| Mozilla | Firefox ESR | unspecified – before 102.8 |
Weakness: CWE-1021 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N