Mozilla Thunderbird up to 102.7 Extension permission

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.9$5k-$25k0.00

Summaryinfo

A vulnerability has been found in Mozilla Thunderbird up to 102.7 and classified as critical. The impacted element is an unknown function of the component Extension Handler. This manipulation causes permission. This vulnerability is handled as CVE-2023-25729. The attack can be initiated remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in Mozilla Thunderbird up to 102.7 (Mail Client Software) and classified as critical. Affected by this vulnerability is an unknown part of the component Extension Handler. The manipulation with an unknown input leads to a permission vulnerability. The CWE definition for the vulnerability is CWE-275. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Permission prompts for opening external schemes were only shown for ContentPrincipals resulting in extensions being able to open them without user interaction via ExpandedPrincipals. This could lead to further malicious actions such as downloading files or interacting with software already installed on the system. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8.

The weakness was released 06/03/2023. It is possible to read the advisory at mozilla.org. This vulnerability is known as CVE-2023-25729 since 02/13/2023. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 11/01/2025). The attack technique deployed by this issue is T1222 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 245562 (Linux Distros Unpatched Vulnerability : CVE-2023-25729), which helps to determine the existence of the flaw in a target environment.

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

The vulnerability is also documented in the databases at Tenable (245562) and EUVD (EUVD-2023-29636). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 7.9

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

NVD Base Score: 8.8
NVD Vector: 🔍

CNA Base Score: 8.8
CNA Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Permission
CWE: CWE-275 / CWE-266
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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Nessus ID: 245562
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2023-25729

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-2023-25729 (🔍)
GCVE (CVE): GCVE-0-2023-25729
GCVE (VulDB): GCVE-100-230611
EUVD: 🔍

Entryinfo

Created: 06/03/2023 07:41
Updated: 11/01/2025 21:36
Changes: 06/03/2023 07:41 (42), 06/29/2023 17:47 (11), 01/10/2025 21:49 (26), 04/26/2025 00:41 (3), 08/08/2025 16:53 (2), 11/01/2025 21:36 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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