CVE-2025-22810 is classified as a medium-severity vulnerability with a CVSS score of 6.5. This vulnerability allows improper neutralization of input during web page generation, specifically leading to a stored Cross-site Scripting (XSS) issue. It affects versions of the Phi Phan Content Blocks Builder content-blocks-builder plugin from n/a through 2.7.6. Organizations using this plugin are at risk of having malicious scripts stored and executed on their sites, potentially impacting users.
The vulnerability was published on January 9, 2025, and has since been marked as deferred. This classification indicates that while the vulnerability is recognized, it may not yet have a formal patch or solution available. Organizations should be proactive in assessing their exposure and implementing necessary mitigations.
Risk to organizations includes unauthorized script execution, leading to potential data theft or user session hijacking. The requirement for user interaction adds a layer of complexity, as attackers must lure users to trigger the malicious scripts. Nevertheless, the low attack complexity and the fact that the vulnerability can be exploited over the network elevate its risk profile.
Organizations should prioritize patching immediately to minimize exposure to this vulnerability. Continuous monitoring and security assessments should be conducted to identify any instances of exploitation.
Vulnerability Details
The official CVE description highlights that this vulnerability allows improper neutralization of input during web page generation, specifically leading to stored XSS. The CVSS score of 6.5 indicates a medium severity, given the attack vector is network-based, with low complexity and low privileges required for exploitation. The issue primarily affects the Content Blocks Builder plugin for WordPress.
Technical Analysis
The root cause of this vulnerability stems from insufficient validation of user input that is processed by the Content Blocks Builder. This oversight allows attackers to inject malicious scripts that are stored and later executed in the context of users accessing the affected pages.
The attack vector is network-based, meaning that an attacker can initiate exploitation without physical access to the target system. The attack complexity is low, indicating that exploitation does not require sophisticated techniques. Low privileges are needed, and user interaction is required to trigger the malicious scripts, making this vulnerability a critical concern for affected organizations.
Risk & Impact Analysis
The risk posed by CVE-2025-22810 is significant, particularly for organizations that rely on the affected Content Blocks Builder plugin. The ability for attackers to execute scripts within the context of a user's session can lead to data breaches, loss of user trust, and potential regulatory consequences. The blast radius can extend depending on how widely the plugin is deployed across different websites and applications.
With an EPSS score of 0.00187, this vulnerability is in the lower percentile of threat but shouldn't be dismissed. Organizations should assess their patch cycles and prioritize this vulnerability based on their deployment and potential exposure.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The vulnerability affects all versions of the Phi Phan Content Blocks Builder content-blocks-builder up to and including version 2.7.6. Organizations should ensure they upgrade to the latest patched version as soon as it becomes available.
Mitigation & Remediation
Organizations are encouraged to implement the following remediation strategies: penetration testing to validate the effectiveness of the patch once it is applied. Furthermore, configuration hardening of the environment and strict input validation measures should be enforced to mitigate the risk of XSS attacks.
Detection Guidance
To detect potential exploitation of this vulnerability, organizations should monitor for unusual script executions on affected web pages, review web server logs for anomalous user inputs, and implement behavioral anomaly detection systems to identify potential XSS attacks.
AppSecure Threat Intelligence Insight
CVE-2025-22810 represents a growing trend in web application vulnerabilities, particularly in content management systems. Security teams should take note of the increasing sophistication of XSS attacks and ensure their defenses are robust.
Organizations can enhance their security posture by regularly conducting comprehensive security assessments and staying informed on the latest vulnerabilities. For more insights, refer to our vulnerability management program and consider investing in web application penetration testing to identify and remediate similar weaknesses.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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