External risk intelligence

Adobe Flash Player Cross-Site Scripting Vulnerability.

CVE advisoryKnown Exploit

CVE-2012-0767

This vulnerability affects Adobe Flash Player, a client-side browser plugin. It requires a user to navigate to a malicious website or interact with crafted content within a browser. It is not an internet-facing service, gateway, or network-reachable appliance that is exposed by default, but rather a client-side component reliant on user-initiated actions.

Cross-site Scripting

Adobe Flash Player

before 10.3.183.1511.0 to before 11.1.102.62before 11.1.111.6before 11.1.115.6

Halo Surface Signal: 1 out of 5 — much less likely to be public-facing.

External exposure likelihood

Horizon Alert

Summary of the vulnerability and why it matters

Adobe Flash Player is vulnerable to a cross-site scripting (XSS) flaw. This weakness allows attackers to inject malicious web script or HTML into affected systems. The primary business impact is the potential compromise of user data and website integrity.

Vulnerable component: Adobe Flash Player
Core weakness: Script injection
Main business impact: Data compromise

Attack Path

How an attacker could exploit the issue

Adobe Flash Player contains a cross-site scripting vulnerability. This flaw allows remote attackers to inject arbitrary web script or HTML into affected systems. Exploitation occurs when an attacker directs a user to a malicious website or through specially crafted content.

Malicious website exposure
Attacker injects script or HTML
Control over user session or data

Live Threat

Current exploitation, exposure, and threat context

This vulnerability, affecting Adobe Flash Player, could allow attackers to inject malicious web scripts or HTML. The exploit requires a user to visit a compromised website or open specially crafted content. While the direct impact is limited to client-side systems, widespread use of Flash Player in the past meant a significant number of users could be affected. Given that Flash Player is end-of-life, organizations should ensure it is disconnected and no longer in use to mitigate risk.

Attackers need low skill.
Exploitation requires user interaction.
Treat as urgent if Flash is active.

Operational Fix

Recommended remediation, mitigation, and detection steps

This vulnerability allows remote attackers to inject arbitrary web script or HTML into affected systems through unspecified vectors. Organizations should prioritize actions to identify and protect against potential exploitation. This vulnerability has been observed being exploited in the wild.

Find affected assets.
Reduce exposure or isolate risk.
Fix, verify, and monitor.

Supplementary metadata

CVSS vector

Validate whether this threat affects your internet-facing exposure.

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Frequently asked questions

What is Adobe Flash Player and what was it used for?

Adobe Flash Player was a software component that enabled the display of interactive content, such as animations and videos, on websites. It was widely used in web browsers to deliver rich media experiences across various operating systems including Windows, macOS, Linux, and Android.

What kind of weakness does CVE-2012-0767 represent?

CVE-2012-0767 is a Cross-Site Scripting (XSS) vulnerability. This type of weakness allows attackers to inject malicious web scripts or HTML into web pages viewed by users, potentially leading to unauthorized actions or data leakage within the context of the user's browser session.

How could an attacker exploit this Flash Player vulnerability?

An attacker could exploit this vulnerability by directing a user to a malicious website or presenting them with specially crafted content that is processed by Adobe Flash Player. This type of attack requires user interaction, meaning the user must visit the malicious site or view the crafted content for the exploit to be successful.

Who needs to care about this CVE based on its network exposure?

Organizations should care about this CVE if their users interact with web content that might still use Adobe Flash Player, even though it is end-of-life. The Halo Surface Signal indicates this is an external vulnerability, meaning it could be reached from the internet, although it primarily affects client-side components dependent on user actions rather than direct internet-facing services.

What is the first step to address this threat if Flash Player is still in use?

The most critical first step is to disconnect any systems still running Adobe Flash Player, as it is end-of-life software. If Flash Player must remain active for some reason, organizations should focus on identifying all affected assets and taking measures to reduce their exposure or isolate the risk.

References

Written by Nicholas Merritt

Nicholas Merritt is VP of Security Solutions at Halo Security. With more than 25 years across application security, vulnerability prioritization, and offensive security, he helps teams translate threat data into practical exposure validation and remediation focus. He authors Halo Threat Intelligence CVE advisories using Halo Surface Signal and H/A/L/O context to prioritize internet-facing risk.