CVE-2025-30314 Overview
CVE-2025-30314 is a stored Cross-Site Scripting (XSS) vulnerability affecting Adobe Connect versions 12.8 and earlier. Attackers can inject malicious JavaScript into vulnerable form fields within the Adobe Connect web meeting platform. The injected payload persists server-side and executes in the browser of any user who later views the affected page. Exploitation requires user interaction, but the attacker needs no prior privileges to submit the malicious content. The vulnerability is classified under [CWE-79] Improper Neutralization of Input During Web Page Generation.
Critical Impact
Successful exploitation allows attackers to execute arbitrary JavaScript in victim browsers, enabling session theft, credential harvesting, and unauthorized actions within the Adobe Connect environment.
Affected Products
- Adobe Connect 12.8 and earlier versions
- Adobe Connect 12.x release branch
- Adobe Connect on-premise and hosted deployments
Discovery Timeline
- 2025-05-13 - CVE-2025-30314 published to NVD
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2025-30314
Vulnerability Analysis
Adobe Connect fails to properly sanitize user-supplied input before rendering it in form fields presented to other users. An attacker submits crafted JavaScript payloads into a vulnerable field, and the application stores the input without adequate output encoding. When a victim navigates to a page containing the tainted field, the browser interprets the payload as executable script rather than data. The stored nature of the flaw means a single injection can affect multiple users over an extended period. The scope-changed rating in the CVSS vector reflects that injected scripts can access resources beyond the vulnerable component, such as authenticated session data.
Root Cause
The root cause is missing or insufficient output encoding in server-side rendering logic for specific form fields in Adobe Connect. The application accepts HTML and script content without applying context-appropriate escaping. Standard XSS defenses such as HTML entity encoding or Content Security Policy enforcement are either absent or misconfigured on the affected pages.
Attack Vector
The attack vector is network-based and requires user interaction. An attacker with the ability to submit content to a vulnerable Adobe Connect form field embeds a malicious script payload. The payload is stored in the application backend. When any authenticated user, including administrators, browses to the page displaying the field, the script executes with the privileges of that user's session. Typical payloads target cookie exfiltration, session hijacking, or forced actions against the Connect API.
Because no verified public exploit code exists at this time, refer to the Adobe Connect Security Advisory for vendor-supplied technical details.
Detection Methods for CVE-2025-30314
Indicators of Compromise
- Unexpected <script>, onerror, onload, or javascript: strings persisted in Adobe Connect form field data
- Outbound HTTP requests from user browsers to unfamiliar domains immediately after loading a Connect page
- Anomalous session token access patterns or session reuse from unexpected IP addresses following meeting participation
Detection Strategies
- Inspect Adobe Connect database records and content stores for HTML or JavaScript syntax within fields expected to contain plain text
- Enable and review web application firewall (WAF) logs for POST requests to Connect endpoints containing common XSS payload signatures
- Correlate browser telemetry with Connect access logs to identify script execution originating from meeting or profile pages
Monitoring Recommendations
- Log and alert on new or modified form field content submitted by low-privilege or unauthenticated users
- Monitor for credential or session cookie access attempts from JavaScript contexts within Adobe Connect origins
- Review Content Security Policy violation reports if CSP is configured in reporting mode against the Connect domain
How to Mitigate CVE-2025-30314
Immediate Actions Required
- Upgrade Adobe Connect to the fixed release identified in Adobe Security Bulletin APSB25-36
- Audit existing form field content across the Connect deployment for previously stored malicious payloads and remove them
- Force session invalidation and require re-authentication for all users after patching to eliminate any active hijacked sessions
Patch Information
Adobe has released a security update addressing CVE-2025-30314. Administrators should apply the version specified in the Adobe Connect Security Advisory APSB25-36. The patch introduces proper output encoding for the affected form fields.
Workarounds
- Restrict access to Adobe Connect content submission features to trusted, authenticated users only until patching is complete
- Deploy a WAF rule set that blocks common XSS payload patterns targeting Connect submission endpoints
- Configure a strict Content Security Policy on the Connect domain to limit inline script execution and untrusted script sources
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
