Espocrm
CVE-2023-5966
MEDIUM
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V5 - File Handling File type validation, storage isolation
MITRE ATT&CK
2 techniques across 2 tactics: Command and Control, Persistence The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 4.7 (MEDIUM). Attack characteristics: network attack vector, low complexity, high privileges required, no user interaction not required. EPSS exploitation probability: 0.85%. |
| Exploit ScenarioDerived | A remote attacker could upload malicious files that can be executed on the server by sending crafted requests to the affected application. |
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Alert meAnalysisAI
An authenticated privileged attacker could upload a specially crafted zip to the EspoCRM server in version 7.2.5, via the extension deployment form, which could lead to arbitrary PHP code execution. Rated medium severity (CVSS 4.7), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate file types server-side, store uploads outside webroot, use random filenames, scan for malware.
Affects your stack
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Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
This vulnerability is classified as Unrestricted File Upload (CWE-434), which allows attackers to upload malicious files that can be executed on the server. An authenticated privileged attacker could upload a specially crafted zip to the EspoCRM server in version 7.2.5, via the extension deployment form, which could lead to arbitrary PHP code execution. Affected products include: Espocrm. Version information: version 7.2.5.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionCVE.org
An authenticated privileged attacker could upload a specially crafted zip to the EspoCRM server in version 7.2.5, via the extension deployment form, which could lead to arbitrary PHP code execution.
Threat Intelligence Overview
NVD
CVE.org
EPSS
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Malicious file upload attacks exploit insufficient validation when web applications accept user-provided files.
Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.
Affected Products (CPE)CVE.org
Directory traversal vulnerability in EspoCRM before 2.6.0 allows remote attackers to include and execute arbitrary local
PHP object deserialization in EspoCRM versions prior to 9.3.7 lets an authenticated administrator achieve remote code ex
Path traversal in EspoCRM's formula scripting engine allows authenticated administrators to achieve arbitrary file read/
EspoCRM version 7.1.8 is vulnerable to Unrestricted File Upload allowing attackers to upload malicious file with any ext
EspoCRM 5.6.4 is vulnerable to user password hash enumeration. Rated high severity (CVSS 8.8), this vulnerability is rem
Authorization bypass in EspoCRM 5.8.5 lets an authenticated low-privilege user reuse or manipulate Basic-Authorization a
EspoCRM deployments before 10.0.5 allow an authenticated user with Email Account scope to retrieve other users' stored I
CSV Injection in Create Contacts in EspoCRM 7.1.8 allows remote authenticated users to run system commands via creating
Boolean-based blind SQL injection in EspoCRM versions 8.1.0 through 9.3.7 allows an authenticated non-administrator to i
Path traversal in EspoCRM admin template management allows authenticated administrators to read, create, overwrite, or d
Server-side request forgery in EspoCRM before 10.0.4 allows authenticated users to route outbound HTTP requests to inter
Stored cross-site scripting in EspoCRM 9.3.3 and below enables an authenticated attacker to execute arbitrary JavaScript
GitHub PoC
Exploit-DB