CVE-2026-5966

TeamT5|ThreatSonar Anti-Ransomware - Arbitrary File Deletion

Published Apr 20, 2026 CVSS 4.0 · 7.2 High EPSS < 1% KEV · Not listed
Description
ThreatSonar Anti-Ransomware developed by TeamT5 has an Arbitrary File Deletion vulnerability. Authenticated remote attackers with web access can exploit Path Traversal to delete arbitrary files on the system.

Analysis

AI-generated

Technical impact

ThreatSonar Anti‑Ransomware, developed by TeamT5, contains a Path Traversal flaw that allows authenticated remote attackers who can access the web interface to delete arbitrary files on the system. The vulnerability permits an attacker to specify a file path that traverses outside the intended directory, resulting in removal of critical system or application files. This loss of files can compromise system availability, disrupt services, and potentially expose sensitive information if deleted files were previously encrypted by the anti‑ransomware software itself.

Affected Systems

The affected product is TeamT5’s ThreatSonar Anti‑Ransomware. All deployments prior to the hotpatch released on 20260302 are vulnerable. No additional product variants or versions are listed, so any installation of this software that has not applied the hotpatch is at risk.

Risk and Exploitability

The CVSS score of 7.2 indicates a high severity. The EPSS score is 0.00343% (less than 1%), indicating a very low but non‑zero exploitation probability. The vulnerability has been categorized as not listed in the CISA KEV catalog, although that does not preclude active exploitation. The likely attack path involves an attacker first authenticating to the web interface of ThreatSonar and then submitting a crafted request that includes a path traversal component to delete a target file. Compromise of the web credentials or a brute‑force attack on the authentication system could enable this scenario.

Remediation

Vendor Solution

Please install hotpatch version 20260302.


OpenCVE Recommended Actions

  • Install hotpatch version 20260302 from TeamT5.
  • Restrict web access to ThreatSonar by enforcing strong authenticated sessions, limiting IP ranges, and removing unnecessary administrative functionality.
  • Deploy file‑integrity monitoring or audit logs to detect and alert on unexpected file deletions within the ThreatSonar installation directories.

Generated by OpenCVE AI on May 12, 2026 at 16:54 UTC.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Weaknesses CWE-22
CPEs cpe:2.3:a:teamt5:threatsonar_anti-ransomware:*:*:*:*:*:*:*:*
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Teamt5
Teamt5 threatsonar Anti-ransomware
Vendors & Products Teamt5
Teamt5 threatsonar Anti-ransomware
Type Values Removed Values Added
Description ThreatSonar Anti-Ransomware developed by TeamT5 has an Arbitrary File Deletion vulnerability. Authenticated remote attackers with web access can exploit Path Traversal to delete arbitrary files on the system.
Title TeamT5|ThreatSonar Anti-Ransomware - Arbitrary File Deletion
Weaknesses CWE-23
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H'}

cvssV4_0

{'score': 7.2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N'}

Weaknesses
  • CWE-22

    Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

  • CWE-23

    Relative Path Traversal

Sources

Status
PUBLISHED
Assigner
twcert
Published
Updated
Apr 20, 2026, 1:30 PM
Reserved
Apr 9, 2026, 10:34 AM
Status
Analyzed
Published
Apr 20, 2026, 8:16 AM
Modified
Oct 26, 2026, 9:10 PM