Vulnerability · Published Jun 2, 2023 · Assigned by mozilla
CVE-2023-25743
High 7.5
In plain English
A high-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 0.6% (higher than 51% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.5High
Exploit odds (30 days)0.6%top 48.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A lack of in app notification for entering fullscreen mode could have lead to a malicious website spoofing browser chrome.<br>*This bug only affects Firefox Focus. Other versions of Firefox are unaffected.*. This vulnerability affects Firefox < 110 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 |
| 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 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | unspecified – before 110 |
| Mozilla | Firefox ESR | unspecified – before 102.8 |