CVE-2025-27304: Medium Vulnerability in ThemLogger Contact Form 7 Star Rating

The vulnerability identified as CVE-2025-27304 pertains to an improper neutralization of input during web page generation, specifically affecting the ThemLogger Contact Form 7 Star Rating plugin with Font Awesome. This issue allows for stored Cross-site Scripting (XSS), which could potentially allow an attacker to execute arbitrary scripts in the context of the user's browser.

With a CVSS score of 5.9, this vulnerability is classified as medium severity. The risk to organizations includes potential unauthorized access to sensitive data and user sessions, where attackers may leverage this vulnerability to execute scripts that could affect user interactions or steal credentials.

Currently, there are no known exploits associated with this vulnerability, which indicates that it has not been widely targeted in the wild. However, organizations should prioritize patching to eliminate any possible attack vectors.

Organizations should prioritize patching immediately to mitigate the risks associated with this vulnerability.

Vulnerability Details

CVE-2025-27304 describes an improper neutralization of input during web page generation, leading to a stored XSS vulnerability in the ThemLogger Contact Form 7 Star Rating plugin. Specifically, this vulnerability affects versions of the plugin from n/a up to and including 1.3. The vulnerability has been classified under CWE-79, which pertains to improper neutralization of input during web page generation.

The CVSS v3.1 base score for this vulnerability is 5.9, indicating a medium severity. The attack vector is defined as network, with low attack complexity, high privileges required, and user interaction necessary for exploitation. The implications include low confidentiality, integrity, and availability impact.

Technical Analysis

The root cause of this vulnerability relates to the improper handling of user input within the plugin. When a user submits data through the Contact Form 7 Star Rating plugin, the input is not adequately sanitized, allowing malicious scripts to be stored and executed later.

The attack vector is network-based, which means that an attacker could exploit this vulnerability remotely. The attack complexity is low, as it requires only basic knowledge of how to craft a malicious input that the system will not filter properly. However, exploitation requires high privileges since the attacker must be able to submit data through the affected form.

User interaction is required to trigger the exploit, as an end-user would need to visit a page where the malicious script is stored. The impact on confidentiality is low, as it primarily allows for the execution of scripts rather than direct access to sensitive data. Integrity is also impacted as attackers may manipulate the user’s session or data.

The availability impact is minimal; however, the risks associated with stored XSS could lead to significant reputational and operational damage.

Risk & Impact Analysis

The real-world deployment risk associated with CVE-2025-27304 is notable due to the potential for stored XSS attacks. Attackers exploiting this vulnerability can manipulate web pages that users frequently visit, particularly if the plugin is widely used across various websites.

Organizations relying on this plugin must consider the blast radius of an attack. If exploited successfully, attackers could gain unauthorized access to user sessions, leading to data breaches and loss of customer trust.

This vulnerability's medium CVSS score indicates that while it is not an immediate critical threat, it should not be overlooked. Organizations should assess their exposure to this risk in relation to their overall security posture.

Exploitation Status

Affected Versions

The vulnerability affects the ThemLogger Contact Form 7 Star Rating plugin, specifically from n/a up to and including version 1.3. Organizations using this plugin should ensure they are running the latest version to mitigate risks.

Mitigation & Remediation

To mitigate this vulnerability, organizations should update the ThemLogger Contact Form 7 Star Rating plugin to the latest version. If an update is not available, consider removing the plugin or disabling it until a patch is released.

Additionally, organizations should implement input validation and sanitization measures for any user-generated content to further reduce the risk of XSS attacks. Regular security audits and continuous penetration testing can help identify similar vulnerabilities.

Organizations should validate remediation through penetration testing to identify similar weaknesses.

Detection Guidance

Organizations should monitor logs for any unusual activity related to the Contact Form 7 Star Rating plugin. Look for unexpected script executions or alterations in user submissions that could indicate an exploitation attempt.

Behavioral anomalies in the user interface, such as unexpected redirects or script injections, should also be investigated promptly.

AppSecure Threat Intelligence Insight

The long-term significance of CVE-2025-27304 lies in its representation of common vulnerabilities in widely used plugins. Security teams must remain vigilant to ensure that third-party components do not introduce risks.

This incident highlights the importance of regular updates and code reviews for plugins, as they can introduce vulnerabilities that may be exploited if left unaddressed.

Organizations should consider engaging in vulnerability management programs to proactively identify and remediate potential weaknesses in their environments.

Additionally, organizations should stay informed about emerging threats and trends in the security landscape, as this vulnerability represents a broader trend in XSS vulnerabilities across various applications.

By understanding the risks and strategically addressing vulnerabilities, security teams can better safeguard their applications against malicious actors.