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CVE-2025-0364

BigAntSoft BigAnt Server Account Registration Bypass to File Upload RCE

Published: Feb 4, 2025Updated: Sep 29, 2025 Sources: CVE List NVDCWE-288
9.8CRITICAL
NVD MITRE
EPSS Score
1.8%
Top 24.6%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
No Fix Available

Description

BigAntSoft BigAnt Server, up to and including version 5.6.06, is vulnerable to unauthenticated remote code execution via account registration. An unauthenticated remote attacker can create an administrative user through the default exposed SaaS registration mechanism. Once an administrator, the attacker can upload and execute arbitrary PHP code using the "Cloud Storage Addin," leading to unauthenticated code execution.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-288

Affected Products

bigant serverbigantsoft
On-prem
Communications / messaging-chat
BigAnt ServerBigAntSoft
On-prem
Communications / messaging-chat
bigantsoftcommercialCommunicationsaka bigant server, bigant im message server, bigant messenger

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

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References

https://vulncheck.com/advisories/big-ant-upload-rce
vulncheck.com
https://github.com/vulncheck-oss/cve-2025-0364
github.com

Timeline

Published
Feb 4, 2025
Last Updated
Sep 29, 2025

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