What is the CVSS score of CVE-2026-34617?

CVE-2026-34617 has a CVSS 3.1 base score of 8.7 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N. EPSS exploitation probability: 0.0%.

Which versions of Adobe Connect are affected by CVE-2026-34617?

Adobe Connect versions 12.10 and earlier contain a stored cross-site scripting vulnerability that allows authenticated users to escalate privileges and compromise other users' sessions through…

How to fix or mitigate CVE-2026-34617?

Within 24 hours: Identify all Adobe Connect deployments in your environment and document current versions; notify users of social engineering risk and advise against clicking unfamiliar links within Connect. Within 7 days: Implement network controls to restrict Adobe Connect access to authorized users only; enable enhanced logging for privilege escalation attempts. Within 30 days: Contact Adobe for patch timeline estimates; evaluate alternative conferencing solutions or implement compensating controls such as Web Application Firewalls (WAF) configured to filter malicious URL patterns and restrict authenticated users' ability to inject script content.

Adobe Connect CVE-2026-34617

EUVD-2026-22673 HIGH

Cross-site Scripting (XSS) (CWE-79)

2026-04-14 adobe

GHSA-2xf6-9qjq-vwwm

XSS Privilege Escalation Adobe Adobe Connect

8.7

CVSS 3.1 · Vendor: adobe

Severity by source

Vendor (adobe) PRIMARY

8.7 HIGH

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

Primary rating from Vendor (adobe) · only source for this CVE.

CVSS VectorVendor: adobe

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

High

Integrity

High

Availability

None

Lifecycle Timeline

Re-analysis Queued

Apr 22, 2026 - 19:37 vuln.today

cvss_changed

Analysis Generated

Apr 14, 2026 - 19:39 vuln.today

EUVD ID Assigned

Apr 14, 2026 - 18:01 euvd

EUVD-2026-22673

Analysis Generated

Apr 14, 2026 - 18:01 vuln.today

CVE Published

Apr 14, 2026 - 17:33 nvd

HIGH 8.7

DescriptionCVE.org

Adobe Connect versions 2025.3, 12.10 and earlier are affected by a Cross-Site Scripting (XSS) vulnerability that could result in privilege escalation. A low-privileged attacker could exploit this vulnerability to inject malicious scripts into a web page, potentially gaining elevated access or control over the victim's account or session. Exploitation of this issue requires user interaction in that a victim must visit a maliciously crafted URL or interact with a compromised web page. Scope is changed.

AnalysisAI

Cross-site scripting (XSS) in Adobe Connect versions 12.10 and earlier, including the 2025.3 release line, enables privilege escalation when low-privileged authenticated users trick victims into visiting malicious URLs. The changed scope (CVSS S:C) indicates the vulnerability can affect resources beyond the vulnerable application's security context. EPSS data not available; no evidence of active exploitation (not in CISA KEV) or public exploit code at time of analysis. Requires user interaction (UI:R) but has low attack complexity (AC:L) and network-based attack vector (AV:N), making social engineering campaigns feasible.

Technical ContextAI

This vulnerability manifests in Adobe Connect's web conferencing platform (CPE: cpe:2.3:a:adobe:adobe_connect), stemming from CWE-79 (Improper Neutralization of Input During Web Page Generation). XSS flaws occur when user-supplied data is reflected in HTML responses without adequate sanitization or encoding. In this case, the changed scope indicator (S:C in CVSS vector) suggests the injected scripts can breach the trust boundary between Adobe Connect and other components, potentially accessing session tokens, cookies, or resources in connected Adobe services. The PR:L (low privileges required) designation indicates authenticated users with minimal permissions can craft the attack payload, likely targeting higher-privileged administrators or meeting hosts who interact with shared content, URLs, or collaborative features within the platform.

RemediationAI

Adobe has released security bulletin APSB26-37 addressing this vulnerability. Organizations must immediately apply the vendor-provided patch by upgrading to the version specified in the advisory at https://helpx.adobe.com/security/products/connect/apsb26-37.html (exact patched version number not provided in available data; consult bulletin directly). As an interim control while planning upgrades, implement strict Content Security Policy (CSP) headers to mitigate XSS injection effectiveness, restrict low-privileged user capabilities to share URLs or embed content in meeting rooms, and educate users to avoid clicking unverified links within Adobe Connect sessions. Monitor authentication logs for unusual privilege escalation patterns or session hijacking indicators. Prioritize patching for internet-facing deployments and environments where untrusted low-privileged users can interact with high-privilege accounts.