Mozilla Firefox up to 109 URL Preview denial of service

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Mozilla Firefox up to 109. This issue affects some unknown processing of the component URL Preview Handler. The manipulation results in an unknown weakness. This vulnerability is cataloged as CVE-2023-25731. The attack may be launched remotely. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Mozilla Firefox up to 109 (Web Browser). Affected is an unknown part of the component URL Preview Handler. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. CVE summarizes:

Due to URL previews in the network panel of developer tools improperly storing URLs, query parameters could potentially be used to overwrite global objects in privileged code. This vulnerability affects Firefox < 110.

The weakness was shared 02/14/2023 by pyakovlev and Alexander Volkov as Bug 1801542 as confirmed advisory (Website). The advisory is shared for download at bugzilla.mozilla.org. The advisory contains:

Due to URL previews in the network panel of developer tools improperly storing URLs, query parameters could potentially be used to overwrite global objects in privileged code.
This vulnerability is traded as CVE-2023-25731. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.

Upgrading to version 110 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-2023-29638). Once again VulDB remains the best source 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: 7.3
VulDB Meta Temp Score: 7.2

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CNA Base Score: 8.8
CNA Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Denial of service
CWE: CWE-404
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: Firefox 110

Timelineinfo

02/13/2023 🔍
02/14/2023 +1 days 🔍
02/14/2023 +0 days 🔍
03/02/2023 +16 days 🔍
11/01/2025 +975 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: Bug 1801542
Researcher: pyakovlev, Alexander Volkov
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2023-25731 (🔍)
GCVE (CVE): GCVE-0-2023-25731
GCVE (VulDB): GCVE-100-222204
EUVD: 🔍

Entryinfo

Created: 03/02/2023 15:14
Updated: 11/01/2025 21:36
Changes: 03/02/2023 15:14 (16), 03/02/2023 15:18 (29), 03/30/2023 16:36 (1), 01/10/2025 21:49 (35), 04/27/2025 20:40 (3), 11/01/2025 21:36 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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