Critical RCE Threat from Hard-Coded ‘b’ Password in Sitecore XP Exposes Enterprises

June 17, 2025
Vulnerability / Enterprise Software

Cybersecurity experts have identified three significant vulnerabilities in the widely-used Sitecore Experience Platform (XP) that could be exploited to achieve pre-authenticated remote code execution (RCE). Sitecore XP is an enterprise software solution that offers tools for content management, digital marketing, and analytics.

The vulnerabilities are as follows:

  • CVE-2025-34509 (CVSS score: 8.2) – Use of hard-coded credentials
  • CVE-2025-34510 (CVSS score: 8.8) – Post-authenticated RCE via path traversal
  • CVE-2025-34511 (CVSS score: 8.8) – Post-authenticated RCE via Sitecore PowerShell Extension

Researcher Piotr Bazydlo from watchTowr Labs pointed out that the default user account “sitecore\ServicesAPI” has a hard-coded single-character password set to “b.” Notably, Sitecore’s documentation advises against altering default credentials. Although the user account lacks roles and permissions, the vulnerabilities still pose a serious risk.

Critical Security Flaws Discovered in Sitecore XP Could Lead to Remote Code Execution Risks

On June 17, 2025, cybersecurity researchers revealed several significant vulnerabilities in the widely-used Sitecore Experience Platform (XP), posing a grave risk of remote code execution (RCE) in enterprise environments. Sitecore XP, renowned for its capabilities in content management, digital marketing, and analytics, primarily serves large organizations looking to enhance their digital presence and engagement.

The disclosed vulnerabilities include hard-coded credentials and two vectors for post-authenticated RCE, which could potentially be exploited in succession. The first vulnerability, designated CVE-2025-34509, has a CVSS score of 8.2 and stems from the usage of hard-coded credentials. Additionally, two other vulnerabilities, CVE-2025-34510 and CVE-2025-34511, both scoring 8.8, allow for post-authenticated remote code execution via path traversal and through the Sitecore PowerShell Extension respectively.

Research conducted by expert Piotr Bazydlo from watchTowr Labs indicated that the default account “sitecore\ServicesAPI” is compromised by a single-character password that is hard-coded to “b.” Alarmingly, Sitecore’s own documentation discourages users from changing the default credentials, further compounding the security risk. Despite this account lacking assigned roles and permissions, its default access level may provide a vector for malicious actors to exploit the vulnerabilities present in the system.

Organizations utilizing the Sitecore XP platform, primarily based in the United States, could be at significant risk if these vulnerabilities remain unaddressed. The nature of these security flaws suggests that initial access could potentially be gained through exploitation of hard-coded credentials, leading to further unauthorized actions within the system. Following this initial breach, an attacker could utilize techniques classified under privilege escalation to conduct post-authenticated RCE, making the initial foothold a critical stage in the attack.

In light of these findings, stakeholders must prioritize the immediate assessment of systems using the Sitecore XP platform. Given the sophistication of the identified vulnerabilities, a careful review of asset protection measures, user account management, and incident response protocols is essential to mitigate risks associated with potential exploitation.

The implications of these vulnerabilities extend beyond immediate technical concerns, underscoring the need for robust cybersecurity practices in enterprise software environments. Organizations should be vigilant in monitoring for unusual activity and should consider employing additional security measures, such as multifactor authentication, to safeguard their systems against similar threats in the future. By understanding the tactics and techniques outlined in the MITRE ATT&CK framework, businesses can better prepare themselves to defend against potential cyber threats and safeguard their valuable digital assets.

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