VulnerabilityPublished 20 Mar 2026Updated 23 Mar 2026

CVE-2026-2378: The BrowserCompany of New York ArcSearch · Clickjacking

Affects The BrowserCompany of New York ArcSearchSource CVE Database V5

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Not known to be exploited · CVSS 7.4 High : upgrade to 1.12.7 soon.

Data as of 3 Nov 2026, 10:57 UTC

CVSS 3.1 base score

7.4High

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.1% chance of exploitation in 30 days – higher than 9% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 1.12.7

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: Required
Scope: Changed
Confidentiality: None
Integrity: High
Availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: Required: Successful exploitation of this vulnerability requires a user to take some action before the vulnerability can be exploited.
Scope: Changed: An exploited vulnerability can affect resources beyond the security scope managed by the security authority of the vulnerable component. In this case, the vulnerable component and the impacted component are different and managed by different security authorities.
Confidentiality: None: There is no loss of confidentiality within the impacted component.
Integrity: High: There is a total loss of integrity, or a complete loss of protection. For example, the attacker is able to modify any/all files protected by the impacted component. Alternatively, only some files can be modified, but malicious modification would present a direct, serious consequence to the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 20 Mar 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 3 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade The BrowserCompany of New York ArcSearch to 1.12.7.

Affected software

Product	Affected	Fixed in
The BrowserCompany of New YorkArcSearch	Affected <1.12.7	Fixed in 1.12.7

AI-suggested

To mitigate CVE-2026-2378, organizations and users should immediately update ArcSearch on Android devices to version 1.12.7 or later, where the vulnerability has been addressed. If you cannot patch yet, users should be educated about the risk of address bar spoofing and advised to verify website authenticity through additional means, such as checking SSL certificates or using trusted bookmarks. Security teams should monitor for phishing campaigns targeting ArcSearch users and deploy endpoint protection solutions capable of detecting suspicious web content or behavior. Implementing browser security policies that restrict the use of untrusted web content and enabling multi-factor authentication can reduce the impact of potential credential theft resulting from spoofing attacks. Additionally, organizations should consider network-level protections such as DNS filtering and web proxies to block access to known malicious domains. Regular security assessments and user awareness training focused on UI spoofing and phishing threats will further strengthen defenses.

Description

ArcSearch for Android versions prior to 1.12.7 could display a different domain in the address bar than the content being shown, enabling address bar spoofing after user interaction via crafted web content.

Impact

The primary impact of CVE-2026-2378 is the compromise of browser UI integrity, enabling attackers to spoof the address bar domain. This can lead to successful phishing attacks where users are tricked into believing they are on a legitimate website, potentially resulting in credential theft, financial fraud, or malware installation. Since the vulnerability requires user interaction, social engineering techniques are likely to be employed by attackers. Although confidentiality and availability are not directly affected, the integrity breach undermines user trust and can have cascading effects on organizational security. Enterprises relying on ArcSearch for Android could face increased risk of targeted phishing campaigns, especially in sectors where secure browsing is critical, such as finance, healthcare, and government. The lack of known exploits in the wild suggests the vulnerability is not yet widely exploited, but the ease of exploitation and high severity score indicate a significant potential threat if weaponized.

CWE-1021Improper Restriction of Rendered UI Layers or Frames (opens in a new tab)
Base weaknessOWASP Top 10 A06:2025: Insecure Design (opens in a new tab)
The web application does not restrict or incorrectly restricts frame objects or UI layers that belong to another application or domain.
Implementation
Use the "frame-ancestors" directive in the Content Security Policy, which is intended to define restrictions when it comes to allowing embedded content.
Implementation
The use of X-Frame-Options (now partially obsolete as of September 2026) allows developers of web content to restrict the usage of their application within the form of overlays, frames, or iFrames. The developer can indicate from which domains can frame the content.
Implementation
Use a "frame-breaker" script in each page that should not be framed. This is very helpful for legacy browsers that do not support the X-Frame-Options security feature previously mentioned (which is now partially obsolete).
OWASP Cheat Sheets
Content Security Policy (opens in a new tab)
Secure Design Principles (opens in a new tab)
OWASP ASVS 4.0.3
V14.4.3 (opens in a new tab)
V14.4.7 (opens in a new tab)
Attack patterns
Clickjacking (opens in a new tab)
Flash File Overlay (opens in a new tab)
iFrame Overlay (opens in a new tab)
Task Impersonation (opens in a new tab)
Tapjacking (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

arc.net/security/bulletins (opens in a new tab)

Community reviews

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 27 Mar 2026, 23:02 UTC

WeaknessesCWE-1021

Technical details

References

Community reviews

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