Mozilla Thunderbird up to 91.5 Extension permission

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Mozilla Thunderbird up to 91.5 and classified as critical. The affected element is an unknown function of the component Extension Handler. Such manipulation leads to permission. This vulnerability is traded as CVE-2022-22754. The attack may be launched remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Mozilla Thunderbird up to 91.5 (Mail Client Software). Affected by this issue is an unknown code of the component Extension Handler. The manipulation with an unknown input leads to a permission vulnerability. Using CWE to declare the problem leads to CWE-275. Impacted is confidentiality, integrity, and availability.

The weakness was shared 02/08/2022 by Rob Wu as Bug 1750565 as confirmed advisory (Website). The advisory is shared for download at bugzilla.mozilla.org. The advisory contains:

If a user installed an extension of a particular type, the extension could have auto-updated itself and while doing so, bypass the prompt which grants the new version the new requested permissions.
This vulnerability is handled as CVE-2022-22754. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 04/28/2026). The MITRE ATT&CK project declares the attack technique as T1222.

Upgrading to version 91.6 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2022-27897). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

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

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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Thunderbird 91.6

Timelineinfo

01/07/2022 🔍
02/08/2022 +32 days 🔍
02/08/2022 +0 days 🔍
09/29/2022 +233 days 🔍
04/28/2026 +1307 days 🔍

Sourcesinfo

Vendor: mozilla.org

Advisory: Bug 1750565
Researcher: Rob Wu
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2022-22754 (🔍)
GCVE (CVE): GCVE-0-2022-22754
GCVE (VulDB): GCVE-100-209864
EUVD: 🔍

Entryinfo

Created: 09/29/2022 17:04
Updated: 04/28/2026 18:13
Changes: 09/29/2022 17:04 (18), 09/29/2022 17:07 (28), 10/26/2022 07:53 (1), 04/28/2026 18:13 (15)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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