CVE-2025-22641: Medium Vulnerability in Prem Tiwari FM Notification Bar

CVE-2025-22641 is classified as a medium severity vulnerability due to its CVSS score of 5.9. This vulnerability allows improper neutralization of input during web page generation, specifically leading to stored Cross-site Scripting (XSS) within the Prem Tiwari FM Notification Bar plugin. The risk to organizations includes potential unauthorized access to sensitive user data, manipulation of web content, and overall degradation of user trust.

The vulnerability is present in versions of the FM Notification Bar plugin from n/a through version 1.0.4. Given the implications of stored XSS, attackers may leverage this weakness to execute arbitrary scripts in the context of the user's session.

Organizations should prioritize patching immediately, as the potential for exploitation exists, despite no confirmed public exploits at this time. Ensuring that all instances of the affected plugin are updated to the latest version will be crucial in preventing any possible attacks.

The vulnerability was published on February 4, 2025, and is currently in a deferred status, indicating that the risk is acknowledged, but a patch may not yet be available.

Security teams should monitor this vulnerability closely, as the landscape for XSS attacks continues to evolve, and new exploitation techniques may emerge.

For further information, the vulnerability details can be found at Patchstack.

Vulnerability Details

The vulnerability CVE-2025-22641 is characterized by improper neutralization of input during web page generation, allowing stored XSS in the Prem Tiwari FM Notification Bar plugin. This issue affects all versions up to and including 1.0.4.

The CVSS score of 5.9 indicates a medium severity level, categorized under CVSS version 3.1. The attack vector is network-based, with a low complexity for exploitation and high privileges required. User interaction is necessary for the vulnerability to be successfully exploited, which further complicates the attack scenario.

Confidentiality, integrity, and availability impacts are all rated as low, indicating that while the vulnerability is serious, the immediate consequences may be limited to user sessions and data rather than system-wide failures.

Technical Analysis

The root cause of this vulnerability lies in the improper handling of user input, specifically during the rendering of web pages where user-generated content is displayed. Attackers could craft malicious input, which, if stored and rendered without adequate sanitization, could execute in the browser of any user accessing the affected web page.

The attack vector is network-based, allowing attackers to send crafted requests over the internet. The complexity of the attack is rated as low, meaning that it does not require extensive resources or sophisticated techniques to exploit. However, it requires high privileges, as the attacker must typically have the ability to submit content that will be stored and displayed.

User interaction is required, as the malicious script must be executed in the context of another user's session. This adds an additional layer of complexity, as it necessitates the attacker to trick a user into interacting with the affected component.

The confidentiality impact is rated low, indicating minimal risk to sensitive data, while integrity and availability impacts are also low, suggesting that the potential for widespread disruption or data loss is limited.

Risk & Impact Analysis

Organizations using the affected FM Notification Bar plugin face significant risks. Stored XSS vulnerabilities can lead to unauthorized actions taken on behalf of users, potentially allowing attackers to impersonate legitimate users, steal session tokens, or manipulate content displayed to users.

The blast radius for this vulnerability can be considerable, especially for websites with a high volume of user-generated content or those that allow user interactions. The potential for exploitation in such environments could lead to significant reputational damage and loss of user trust.

With a CVSS score of 5.9, the urgency to patch this vulnerability is classified as moderate. Organizations should schedule remediation as part of their ongoing security maintenance programs, particularly if they are running versions of the FM Notification Bar plugin affected by this vulnerability.

Exploitation Status

Affected Versions

The vulnerability affects FM Notification Bar versions from n/a through 1.0.4. Organizations using these versions should take immediate action to mitigate the risk.

Mitigation & Remediation

Organizations should check for updates from the vendor and apply the latest patches to the FM Notification Bar plugin. If a patch is not yet available, consider disabling the plugin or implementing additional input validation controls to mitigate the risk of exploitation.

For more comprehensive security measures, organizations can engage in penetration testing to identify vulnerabilities before they can be exploited.

Detection Guidance

Organizations should implement logging mechanisms to capture anomalous user input and interactions with the FM Notification Bar plugin. Monitoring for unexpected behavior, such as unusual scripts being rendered on user interfaces, can help detect potential exploitation attempts.

AppSecure Threat Intelligence Insight

The presence of this stored XSS vulnerability highlights ongoing security challenges in web applications, particularly those relying heavily on user-generated content. Security teams should consider adopting strategies that prioritize input validation and sanitization, as well as conducting regular security assessments.

For further insights on managing web application security, refer to our guides on web application penetration testing and vulnerability management program design to enhance your organization's security posture.

For organizations with a focus on cloud environments, our cloud penetration testing guide offers tailored strategies to address security challenges.