CVE-2023-25743
A lack of in app notification for entering fullscreen mode could have lead to a malicious website spoofing browser chrome. *This bug only affects Firefox Focus. Other versions of Firefox are
02 Description
A lack of in app notification for entering fullscreen mode could have lead to a malicious website spoofing browser chrome. *This bug only affects Firefox Focus. Other versions of Firefox are
03 Exploitation and scoring
- Exploitation
- Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
- SSVC decision
- ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
- AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.64% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 50.9% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- NVD analysis status
- Modified. NVD last modified this record on 2026-10-24.
- Red Hat severity
- Important. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2023-06-02 00:00Z3 YR AGO
- Last updated
- 2025-01-09 16:13Z1 YR AGO
- Reserved
- 2023-02-13
- Assigning CNA
- mozilla
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- Data version
- 5.1
- Document digest
- 45cae2888d170d99f8ef7170899cb2d6b46969080027810c4c2926cc12456a60
05 Affected products
06 References
- www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2023-06/
- www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2023-05/
- bugzilla.mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=1800203
07 Fixed in
AlmaLinux 8
- firefox Fixed in 102.8.0-2.el8_7.alma
- thunderbird Fixed in 102.8.0-2.el8_7.alma
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
AlmaLinux 9
- firefox Fixed in 102.8.0-2.el9_1.alma
- firefox-x11 Fixed in 102.8.0-2.el9_1.alma
- thunderbird Fixed in 102.8.0-2.el9_1.alma
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 8
- firefox Fixed in 102.8.0-2.el8_7.alma
- thunderbird Fixed in 102.8.0-2.el8_7.alma
Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 9
- firefox Fixed in 102.8.0-2.el9_1.alma
- firefox-x11 Fixed in 102.8.0-2.el9_1.alma
- thunderbird Fixed in 102.8.0-2.el9_1.alma
Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.