External risk intelligence

Adobe Connect Stored Cross-Site Scripting Vulnerability

CVE advisorySeverity: CRITICAL (CVSS 9.3)

CVE-2026-75697

Adobe Connect is a web conferencing and virtual training platform designed to be accessed over the network by remote users and external participants, making its web-based form fields and interface commonly reachable in internet-facing deployment scenarios.

Cross-site Scripting

Adobe Connect

before 12.12before 4.5

Halo Surface Signal: 4 out of 5 — likely to be public-facing.

External exposure likelihood

Horizon Alert

Summary of the vulnerability and why it matters

This vulnerability affects Adobe Connect, a web conferencing and virtual training platform, and involves the potential for malicious scripts to be injected into form fields. If exploited, these scripts could execute in a user's browser, potentially leading to unauthorized access or control over their account or session. The primary concern is confirming the relevance and exposure of this vulnerability within your environment.

  • Injected scripts can compromise user accounts.
  • Critical XSS flaw impacts Adobe Connect.
  • Confirm exposure to understand risk.

Attack Path

How an attacker could exploit the issue

An attacker could target a user by injecting malicious scripts into vulnerable form fields within Adobe Connect. When a victim visits a page with these compromised fields, the malicious JavaScript could execute in their browser, potentially allowing the attacker to gain elevated access or control over the victim's account or session.

  • No authentication required.
  • Inject script into form fields.
  • Account takeover or session hijacking.

Live Threat

Current exploitation, exposure, and threat context

A stored cross-site scripting vulnerability in Adobe Connect could allow an attacker to inject malicious scripts into form fields, which may execute in a victim's browser when they access the affected page. This could lead to unauthorized access or control over the victim's account or session.

  • Stored malicious scripts in form fields.
  • Victim browses to a page with vulnerable field.
  • Elevated access or control over victim's account.

Operational Fix

Recommended remediation, mitigation, and detection steps

This stored Cross-Site Scripting vulnerability in Adobe Connect requires immediate attention from teams responsible for web applications and vendor-managed platforms. The first practical step is to identify all Adobe Connect instances, confirm their reachability and business criticality, and then assign ownership for remediation planning.

  • Application and platform teams own the issue.
  • Verify instance reachability and business criticality.
  • Plan remediation based on risk and vendor coordination.

Supplementary metadata

Validate whether this threat affects your internet-facing exposure.

Halo Threat Intelligence helps prioritize remediation with Halo Surface Signal and H/A/L/O context. Start exposure validation with a free external attack surface trial.

Frequently asked questions

What is Adobe Connect?

Adobe Connect is a software platform used for web conferencing, virtual classrooms, and online training. It provides a browser-based interface where users interact through various form fields and shared digital workspaces to collaborate or attend presentations remotely.

What does CVE-2026-75697 mean?

This CVE identifies a stored Cross-Site Scripting (XSS) vulnerability, classified as CWE-79. It occurs when a web application improperly saves user input, allowing an attacker to store malicious JavaScript code in form fields. When a victim views the affected page, their browser interprets this code as legitimate, potentially granting the attacker control over the victim's session.

How can an attacker trigger this vulnerability?

An attacker triggers the flaw by injecting malicious scripts into vulnerable form fields within the application. The script executes only when a victim subsequently accesses the page containing that stored data. Simply visiting the application without accessing the specific, compromised field will not trigger the execution of the malicious script.

Is my Adobe Connect instance at risk?

Halo Surface Signal indicates that Adobe Connect is designed for network-based virtual collaboration, making its interface frequently accessible to remote and external users. Because this platform is often configured to be internet-facing to facilitate wide-scale participation, instances are typically reachable by unauthorized actors over the network.

What should I do to address this issue?

Begin by creating an inventory of all Adobe Connect instances in your environment to understand your footprint. Prioritize verifying which of these are reachable from the internet, assess their business importance, and coordinate with your technical teams to track the vendor's official security updates for your specific deployment.

References