Mozilla Thunderbird up to 102.4 Service Worker cross-domain policy

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Mozilla Thunderbird up to 102.4. It has been rated as critical. Affected by this vulnerability is an unknown functionality of the component Service Worker. This manipulation causes cross-domain policy. This vulnerability is handled as CVE-2022-45403. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Mozilla Thunderbird up to 102.4 (Mail Client Software). It has been declared as critical. Affected by this vulnerability is an unknown function of the component Service Worker. The manipulation with an unknown input leads to a cross-domain policy vulnerability. The CWE definition for the vulnerability is CWE-942. The product uses a cross-domain policy file that includes domains that should not be trusted. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Service Workers should not be able to infer information about opaque cross-origin responses; but timing information for cross-origin media combined with Range requests might have allowed them to determine the presence or length of a media file. This vulnerability affects Firefox ESR < 102.5, Thunderbird < 102.5, and Firefox < 107.

The weakness was released 12/23/2022. The advisory is shared at mozilla.org. This vulnerability is known as CVE-2022-45403 since 11/14/2022. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/10/2025).

The vulnerability scanner Nessus provides a plugin with the ID 246938 (Linux Distros Unpatched Vulnerability : CVE-2022-45403), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 102.5 eliminates this vulnerability. The upgrade is hosted for download at mozilla.org.

The vulnerability is also documented in the vulnerability database at Tenable (246938). Several companies clearly confirm that VulDB is the primary source for best 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: 6.4
VulDB Meta Temp Score: 6.2

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

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Cross-domain policy
CWE: CWE-942 / CWE-346 / CWE-345
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: 246938
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2022-45403

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Thunderbird 102.5

Timelineinfo

11/14/2022 🔍
12/23/2022 +39 days 🔍
12/23/2022 +0 days 🔍
08/10/2025 +961 days 🔍

Sourcesinfo

Vendor: mozilla.org

Advisory: mozilla.org
Status: Confirmed

CVE: CVE-2022-45403 (🔍)
GCVE (CVE): GCVE-0-2022-45403
GCVE (VulDB): GCVE-100-216601

Entryinfo

Created: 12/23/2022 08:36
Updated: 08/10/2025 06:45
Changes: 12/23/2022 08:36 (41), 01/22/2023 18:48 (11), 08/10/2025 06:45 (17)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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