High severity · published Apr 20, 2026
CVE-2026-5966
TeamT5｜ThreatSonar Anti-Ransomware - Arbitrary File Deletion
8.1
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 35% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TA
ThreatSonar Anti-Ransomware · TeamT5
through 4.0.0 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-5966
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-5966
Not Applicable
https://www.twcert.org.tw/en/cp-139-10832-05f3a-2.html
Not Applicable
https://www.twcert.org.tw/tw/cp-132-10831-a734d-1.html
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