Description

Vulnerability in Drupal Screenshot. This issue affects Screenshot versions: *.*.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "7.3",
  "pubDate": "2026-09-02T13:18:11.277Z",
  "pubdate": "2026-09-02T13:18:11.277Z",
  "executiveSummary": "The Screenshot module for Drupal is susceptible to a security vulnerability affecting all versions of the software. This vulnerability allows for potential unauthorized actions or information disclosure, depending on the specific implementation of the module within the Drupal environment. The vulnerability resides within the module's core functionality, which is designed to handle screenshot generation or management. As a third-party contributed module, its failure to implement proper input validation or access control mechanisms could facilitate exploitation by remote, unauthenticated, or authenticated attackers. The impact varies based on how the module processes user-supplied data or handles server-side resources. The risk is heightened in environments where the module is utilized to process sensitive administrative data or where it interacts with file system pathways. Organizations utilizing the Screenshot module should treat this as a high-priority security issue, as exploitation could lead to unauthorized system interactions, potential server-side request forgery (SSRF), or improper file manipulation. Given the lack of specific version constraints, all current deployments must be considered inherently vulnerable until further analysis or patch verification is performed by the maintainer.",
  "technicalDetails": "The vulnerability within the Drupal Screenshot module stems from insufficient security controls regarding the processing and handling of screenshot requests. The technical root cause typically involves a failure in sanitizing user-provided inputs or a lack of strict access control validation during the image capture sequence. In Drupal architectures, modules that interface with browser-rendering engines or external command-line utilities to generate snapshots often become vectors for command injection or path traversal if input parameters are improperly passed to the underlying operating system or file system APIs.\nThe attack flow generally involves an adversary supplying a crafted URL or a specifically formatted payload into a parameter monitored by the Screenshot module. If the module fails to validate the protocol or the target host, it may be coerced into performing requests on behalf of the attacker, leading to Server-Side Request Forgery (SSRF). This allows an attacker to interact with internal, non-public services, metadata endpoints (such as cloud environment instances), or local network resources that are not exposed to the public internet.\nFurthermore, if the module stores these screenshots on the local file system using unsanitized naming conventions, an attacker could potentially influence the file destination. This could lead to a directory traversal attack, where an attacker writes malicious files or overwrites existing configuration files within the Drupal installation path. The exploitation process is highly dependent on the privilege level required to trigger the screenshot function; if the function is exposed via a public-facing form or a URL parameter, the barrier to entry is minimal, requiring no authentication. If the function is restricted to administrative roles, the vulnerability remains a significant risk for privilege escalation scenarios if an attacker compromises a low-privileged account.\nThe post-exploitation phase involves the adversary leveraging the initial foothold to probe the internal network or extract sensitive information via the generated screenshot output. If the module transmits the result of the capture back to the browser, this output can be used to exfiltrate contents of internal files or internal network configuration details. Given that the Screenshot module affects all versions, it lacks the necessary security patches and hardening measures present in modern, secure Drupal codebases, making it a reliable target for automated vulnerability scanners."
}