CVE-2025-24634 is identified as a medium-severity vulnerability due to improper neutralization of input during web page generation, commonly referred to as Cross-site Scripting (XSS). This vulnerability allows stored XSS, which can significantly affect users and organizations utilizing the affected software. The vulnerability is found in the Svetoslav Marinov Orbisius Simple Notice plugin, impacting versions from n/a through version 1.1.3.
The CVSS score assigned to this vulnerability is 5.9, indicating its medium severity level. This score reflects the vulnerability's exploitability and potential impact, highlighting the need for organizations to address it in their security policies.
Risk to organizations includes the potential for attackers to execute arbitrary scripts in the context of a user’s browser, which can lead to data theft, session hijacking, and other malicious activities. This makes the urgency for defenders to act upon discovering this vulnerability critical, especially given its implications in web applications.
Currently, there are no known exploits or public proof-of-concepts available for this vulnerability, but organizations should remain vigilant and prepared for potential exploitation. Organizations should prioritize addressing this vulnerability in their patching cycles to ensure the integrity and security of their web applications.
Vulnerability Details
The official description of this vulnerability states that it allows stored XSS due to improper neutralization of input during webpage generation in the Orbisius Simple Notice plugin. The vulnerability is classified under CWE-79, indicating its association with improper neutralization of input in a web context.
With a CVSS score of 5.9, the vulnerability is categorized as medium severity, primarily due to the requirement of high privileges for exploitation and the necessity of user interaction. The attack vector is network-based, and the complexity of the attack is low, making it relatively easier for attackers to exploit this vulnerability if they gain access to a user’s session.
Technical Analysis
The root cause of this vulnerability lies in the failure to properly sanitize user input before rendering it on web pages. Attackers may leverage this flaw to inject malicious scripts that can be executed in the browser of any user who views the affected page.
The attack vector is network-based, requiring that an attacker be able to communicate with the target application over the network. The attack complexity is categorized as low, meaning that technical expertise is not heavily required for exploitation. However, the exploit requires high-level privileges, and user interaction is necessary for successful execution.
The confidentiality, integrity, and availability impacts are all classified as low, indicating that while the vulnerability could lead to significant issues, it does not immediately compromise the overall system.
Risk & Impact Analysis
The risk to organizations includes the potential for significant impact on user data and trust. If exploited, this vulnerability could allow attackers to execute scripts that compromise user accounts, leading to unauthorized actions or data exposure.
This vulnerability could have a wide blast radius, particularly for organizations that utilize the affected plugin across multiple web applications or services. As such, organizations should assess their deployment of the Orbisius Simple Notice plugin and prioritize remediation efforts accordingly.
Given the vulnerability's medium CVSS score and its status as deferred, organizations should address it during their patch cycle. While it may not be actively exploited, the potential for future exploitation remains, and therefore vigilance is essential.
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 Orbisius Simple Notice plugin prior to version 1.1.3. Organizations using this plugin should verify their current version and apply necessary updates.
Mitigation & Remediation
Organizations should prioritize patching the Orbisius Simple Notice plugin to version 1.1.4 or later to mitigate this vulnerability. In cases where immediate patching is not feasible, consider implementing web application firewalls (WAF) to filter and monitor HTTP traffic to and from the application.
For ongoing security, organizations may engage in penetration testing practices to identify similar weaknesses in their applications. Configuration hardening and regular security assessments should also be part of the security strategy.
Detection Guidance
To detect potential exploitation of this vulnerability, organizations should monitor web application logs for unusual requests or user inputs that may indicate XSS attempts. Behavioral anomalies in user sessions should also be investigated.
Implementing network signatures that alert on suspicious payloads can be beneficial. Additionally, organizations should maintain an inventory of changes made to the web application to correlate with any incidents.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2025-24634 underscores the ongoing risks associated with XSS vulnerabilities in web applications. As web applications evolve, so do the methods employed by attackers to exploit these weaknesses. This case highlights the importance of secure coding practices and thorough testing.
Organizations should learn from this vulnerability, as it represents a common flaw that many web applications face. The strategic takeaway for security teams is to prioritize input validation and proper sanitization to prevent similar vulnerabilities.
For comprehensive security assessments, organizations can refer to the following resources: web application penetration testing, penetration testing methodology, and vulnerability management program design to enhance overall security posture.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

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