Mozilla Thunderbird up to 102.7 Fullscreen Mode requestFullscreen Remote Code Execution

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.6$0-$5k0.00

Summaryinfo

A vulnerability was found in Mozilla Thunderbird up to 102.7. It has been classified as critical. The affected element is the function requestFullscreen of the component Fullscreen Mode. This manipulation causes an unknown weakness. The identification of this vulnerability is CVE-2023-25730. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical was found in Mozilla Thunderbird up to 102.7 (Mail Client Software). Affected by this vulnerability is the function requestFullscreen of the component Fullscreen Mode. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

A background script invoking requestFullscreen 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.

The weakness was shared 06/03/2023. It is possible to read the advisory at mozilla.org. This vulnerability is known as CVE-2023-25730 since 02/13/2023. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 11/01/2025).

Upgrading to version 102.8 eliminates this vulnerability. The upgrade is hosted for download at mozilla.org.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-29637). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.6

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.4
NVD Vector: 🔍

CNA Base Score: 5.4
CNA Vector: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Remote Code Execution
CWE: Unknown
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Thunderbird 102.8

Timelineinfo

02/13/2023 🔍
06/03/2023 +109 days 🔍
06/03/2023 +0 days 🔍
11/01/2025 +882 days 🔍

Sourcesinfo

Vendor: mozilla.org

Advisory: mozilla.org
Status: Confirmed

CVE: CVE-2023-25730 (🔍)
GCVE (CVE): GCVE-0-2023-25730
GCVE (VulDB): GCVE-100-230599
EUVD: 🔍

Entryinfo

Created: 06/03/2023 07:28
Updated: 11/01/2025 21:36
Changes: 06/03/2023 07:28 (41), 06/29/2023 16:24 (11), 01/10/2025 21:49 (25), 04/26/2025 01:47 (3), 11/01/2025 21:36 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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