VDB-409188 · CVE-2026-94183 · GCVE-0-2026-94183

Browser Company Arc Search up to 1.12.9 reverse tabnabbing

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	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.
5.7	$0-$5k	0.41-

Summaryinfo

A vulnerability labeled as problematic has been found in Browser Company Arc Search up to 1.12.9. Affected is an unknown function. The manipulation results in reverse tabnabbing. This vulnerability was named CVE-2026-94183. The attack may be performed from remote. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Browser Company Arc Search up to 1.12.9. Affected is an unknown part. The manipulation with an unknown input leads to a reverse tabnabbing vulnerability. CWE is classifying the issue as CWE-1022. The web application produces links to untrusted external sites outside of its sphere of control, but it does not properly prevent the external site from modifying security-critical properties of the window.opener object, such as the location property. This is going to have an impact on integrity. CVE summarizes:

Arc Search for Android before version 1.12.10 does not display a fullscreen notification when a page enters fullscreen mode while the app is running in the background. A remote attacker can exploit this via a specially crafted website to render fake UI elements, such as a spoofed address bar, misleading the user about the origin of displayed content and increasing the risk of phishing.

The advisory is shared for download at hackerone.com. This vulnerability is traded as CVE-2026-94183 since 09/21/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available.

Upgrading to version 1.12.10 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Browser Company

Name

Arc Search

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.8
VulDB Meta Temp Score: 5.7

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

CNA Base Score: 7.4
CNA Vector (BCNY): 🔒

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

Exploitinginfo

Class: Reverse tabnabbing
CWE: CWE-1022 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Arc Search 1.12.10

Timelineinfo

09/21/2026 CVE reserved
09/23/2026 +2 days Advisory disclosed
09/23/2026 +0 days VulDB entry created
09/23/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: hackerone.com
Status: Confirmed

CVE: CVE-2026-94183 (🔒)
GCVE (CVE): GCVE-0-2026-94183
GCVE (VulDB): GCVE-100-409188

Entryinfo

Created: 09/23/2026 21:40
Changes: 09/23/2026 21:40 (62)
Complete: 🔍
Cache ID: 216::103