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CVE-2025-61506VulnerabilityPublished Updated

CVE-2025-61506: n/a

Source CVE Database V5

0

Not known to be exploited · CVSS 9.8 Critical.

Data as of 26 Oct 2026, 08:30 UTC

CVSS 3.1 base score
9.8Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.6% chance of exploitation in 30 days – higher than 50% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Affects
MediaCrush up to 1.0.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 3 Feb 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

AI-suggested

1. Immediately disable or restrict access to the /upload endpoint until a patch is available. 2. Implement strict server-side validation of uploaded files, including file type, size limits, and content inspection to prevent dangerous file types. 3. Employ application-layer firewalls or web application firewalls (WAFs) with custom rules to detect and block malicious upload attempts. 4. Monitor logs and network traffic for unusual upload activity or large file transfers indicative of exploitation attempts. 5. Isolate MediaCrush servers in segmented network zones with limited access to critical infrastructure. 6. Regularly update and patch MediaCrush once vendor fixes are released. 7. Educate administrators about the risks and signs of exploitation to enable rapid response. 8. Consider deploying endpoint detection and response (EDR) solutions to detect post-exploitation activities. 9. Conduct security assessments and penetration testing focused on file upload mechanisms to identify residual risks.

Description

CVE-2025-61506 is a critical vulnerability in MediaCrush versions up to 1.0.1 that allows remote, unauthenticated attackers to upload arbitrary files of any size via the /upload endpoint. This flaw stems from improper validation of uploaded files (CWE-434), enabling attackers to potentially execute malicious code, disrupt service, or compromise system integrity. The vulnerability has a CVSS score of 9.8, reflecting its high impact on confidentiality, integrity, and availability without requiring authentication or user interaction. Although no known exploits are currently reported in the wild, the ease of exploitation and severity make it a significant threat. European organizations using MediaCrush for media hosting or sharing should urgently assess their exposure and apply mitigations. Countries with higher adoption of MediaCrush or strategic media infrastructure are at greater risk. Immediate mitigation includes restricting or disabling the upload endpoint, implementing strict file validation, and monitoring for suspicious activity.

References

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