Versions of the package spatie/browsershot before 5.0.5 are vulnerable to Improper Input Validation in the setHtml function, invoked by Browsershot::html(). This vulnerability allows attackers to bypass input validation mechanisms by omitting slashes in the file URI (e.g., file:../../../../etc/passwd). The lack of proper validation is a significant issue, as it permits file URI schemes (e.g., file:// and file:/) to be processed in the HTML content.
The vulnerability has a CVSS score of 7.8, indicating a high severity level. This rating is crucial as it highlights the potential impact on confidentiality, integrity, and availability. The attack vector is classified as network-based, with low complexity, meaning that exploiting this vulnerability does not require specialized skills.
Risk to organizations includes unauthorized access to sensitive files, which can lead to data breaches and other significant security incidents. Therefore, organizations using affected versions should prioritize remediation efforts. Failure to address this vulnerability may expose systems to severe risks.
Organizations should prioritize patching immediately. Users are encouraged to upgrade to version 5.0.5 or later to mitigate the risks associated with this vulnerability.
Vulnerability Details
The vulnerability is classified under CWE-20, which pertains to improper input validation. This is a common weakness that can lead to severe consequences if not addressed. The official description indicates that the vulnerability arises from missing validations of user input that should block file URI schemes in HTML content.
The CVSS score of 7.8 reflects the significant impact on confidentiality, with a high confidentiality impact and a low integrity impact. There is no availability impact associated with this vulnerability.
The vulnerability was published on February 5, 2025, and is currently listed as deferred.
Technical Analysis
The root cause of this vulnerability lies in the improper handling of user input within the setHtml function. This function fails to validate the input correctly, allowing attackers to exploit the system by manipulating file URIs. The attack vector is through a network, and the complexity of the attack is low, requiring no special privileges or user interaction.
Given the nature of the vulnerability, it is critical to understand that the confidentiality impact is high, as attackers may gain access to sensitive files, while the integrity impact remains low, indicating potential manipulation of data without detection.
Organizations should be proactive in monitoring for signs of exploitation and implementing necessary safeguards to prevent unauthorized access.
Risk & Impact Analysis
The deployment of vulnerable versions of spatie/browsershot poses significant risks to organizations. Attackers may leverage this vulnerability to execute arbitrary file reads, potentially exposing sensitive information stored on the server. The blast radius could be extensive, affecting multiple applications and services relying on the compromised package.
Organizations should assess their exposure and prioritize patching efforts based on the CVSS score of 7.8, which indicates a high level of urgency. Moreover, given the findings from Snyk and other security sources, this vulnerability should be treated with the utmost priority.
Failure to act could result in unauthorized access to sensitive data, leading to financial losses and reputational damage.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
All versions prior to vendor patch (5.0.5) are affected. It is crucial that organizations running these versions take immediate action to upgrade.
Mitigation & Remediation
Organizations should update to version 5.0.5 of spatie/browsershot to mitigate this vulnerability. If immediate upgrading is not feasible, consider implementing input validation mechanisms that restrict file URI schemes to prevent unauthorized file access.
For those seeking further assistance in validating these vulnerabilities, organizations should consider engaging in penetration testing to ensure all security measures are effectively implemented.
Detection Guidance
Organizations should monitor logs for unexpected file access attempts and validate user input that is processed by the setHtml function. Behavioral anomalies related to unauthorized access patterns should also be scrutinized.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2025-1022 lies in the ongoing trend of improper input validation vulnerabilities that can lead to severe security incidents. Security teams should learn from this case to improve their input validation strategies and ensure that similar weaknesses are not present in their applications.
This vulnerability exemplifies the importance of rigorous security testing during the development lifecycle. For additional resources on securing applications, organizations may consider reviewing our penetration testing methodology and implementing best practices for secure coding.
As the landscape of application vulnerabilities continues to evolve, understanding the patterns of exploitation can help organizations stay ahead of potential threats. For insights into emerging trends, refer to our blog on vulnerability management programs to enhance their security posture.
In conclusion, the proactive identification and remediation of vulnerabilities like CVE-2025-1022 are essential to maintaining robust security in applications. Organizations should prioritize their security measures to safeguard against similar threats.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

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