{"id":54753,"date":"2025-06-24T09:37:27","date_gmt":"2025-06-24T09:37:27","guid":{"rendered":""},"modified":"2025-09-07T05:38:09","modified_gmt":"2025-09-07T11:38:09","slug":"cve-2025-34511-sitecore-powershell-extensions-remote-code-execution-vulnerability","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-34511-sitecore-powershell-extensions-remote-code-execution-vulnerability\/","title":{"rendered":"CVE-2025-34511: Sitecore PowerShell Extensions Remote Code Execution Vulnerability<\/strong>"},"content":{"rendered":"

Overview<\/strong><\/p>\n

The Common Vulnerabilities and Exposures (CVE) system recently identified a vulnerability, designated CVE-2025-34511, which affects Sitecore PowerShell Extensions. This add-on is widely used in conjunction with Sitecore Experience Manager (XM) and Experience Platform (XP). The vulnerability in question is an unrestricted file upload<\/a> issue, which, if exploited by a remote, authenticated attacker, can allow arbitrary files to be uploaded to the server. This subsequently results in potential remote code execution<\/a>, making it a worrying issue for Sitecore users.
\nThe severity of this vulnerability, its potential impact on the integrity of affected systems, and its wide applicability make it a significant concern for individuals and organizations that rely on Sitecore Experience Manager<\/a> and Experience Platform.<\/p>\n

Vulnerability Summary<\/strong><\/p>\n

CVE ID: CVE-2025-34511
\nSeverity: High, CVSS score of 8.8
\nAttack Vector: Network
\nPrivileges Required: Low
\nUser Interaction: Required
\nImpact: Potential system<\/a> compromise or data leakage<\/p>\n

Affected Products<\/strong><\/p>\n

Product | Affected Versions<\/p>\n

Sitecore PowerShell Extensions | Up to version 7.0<\/p>\n

How the Exploit Works<\/strong><\/p>\n

The exploit takes advantage of an unrestricted file upload vulnerability<\/a> in the Sitecore PowerShell Extensions. A remote, authenticated attacker can craft specific HTTP requests to upload arbitrary files<\/a> to the server. This unrestricted file upload can potentially lead to remote code execution<\/a>. The attacker could leverage this to execute malicious code<\/a>, potentially compromising the system or leading to data leakage.<\/p>\n

Conceptual Example Code<\/strong><\/p>\n

Here is a conceptual example of how this vulnerability might be exploited. This is a sample HTTP POST request that an attacker could use to upload a malicious file:<\/a><\/p>\n

POST \/UploadHandler.ashx HTTP\/1.1\nHost: victim-sitecore-server.com\nContent-Type: multipart\/form-data; boundary=----boundary\n------boundary\nContent-Disposition: form-data; name=\"file\"; filename=\"malicious_file.txt\"\nContent-Type: text\/plain\n[Insert malicious payload here]\n------boundary--<\/code><\/pre>\n
Remember, this is a simplified, conceptual example meant to highlight the vulnerability. In a real-world scenario, the attacker would need to craft a more sophisticated request, and the payload would likely be a complex script designed to execute malicious actions on the server<\/a>.<\/p>\n
Mitigation Guidance<\/strong><\/p>\n
To mitigate this vulnerability, users of affected versions of Sitecore<\/a> PowerShell Extensions are advised to apply the vendor patch as soon as it is available. If the patch cannot be applied immediately, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation strategy. These tools can help monitor and control incoming network traffic to detect and block potential<\/a> exploit attempts.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview The Common Vulnerabilities and Exposures (CVE) system recently identified a vulnerability, designated CVE-2025-34511, which affects Sitecore PowerShell Extensions. This add-on is widely used in conjunction with Sitecore Experience Manager (XM) and Experience Platform (XP). The vulnerability in question is an unrestricted file upload issue, which, if exploited by a remote, authenticated attacker, can allow […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[1],"tags":[],"vendor":[],"product":[],"attack_vector":[80],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-54753","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-rce"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t