Webaccess Nms
CVE-2020-10629
HIGH
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A02:2025 - Security Misconfiguration
ASVS 5.0
V13 - Configuration XML external entity prevention
MITRE ATT&CK
2 techniques across 2 tactics: Initial Access, Collection The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 7.5 (HIGH). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. |
| Exploit ScenarioDerived | A remote attacker could read arbitrary files or perform SSRF through XML processing by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability. |
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Alert meAnalysisAI
WebAccess/NMS (versions prior to 3.0.2) does not sanitize XML input. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Disable external entity processing in XML parsers, use JSON instead of XML where possible.
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 XML External Entity (XXE) (CWE-611), which allows attackers to read arbitrary files or perform SSRF through XML processing. WebAccess/NMS (versions prior to 3.0.2) does not sanitize XML input. Specially crafted XML input could allow an attacker to read sensitive files. Affected products include: Advantech Webaccess\/Nms. Version information: prior to 3.0.2.
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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:N/UI:N/S:U/C:H/I:N/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionNVD
WebAccess/NMS (versions prior to 3.0.2) does not sanitize XML input. Specially crafted XML input could allow an attacker to read sensitive files.
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
XML External Entity (XXE) attacks exploit XML parsers that process Document Type Definitions (DTDs) without proper restrictions.
Affected Products (CPE)NVD
More in Webaccess Nms
View allAn attacker could use a specially crafted URL to delete or read files outside the WebAccess/NMS's (versions prior to 3.0
WebAccess/NMS (versions prior to 3.0.2) allows an unauthenticated remote user to create a new admin account. Rated criti
Multiple issues exist that allow files to be uploaded and executed on the WebAccess/NMS (versions prior to 3.0.2). Rated
In Advantech WebAccess versions V8.2_20170817 and prior, WebAccess versions V8.3.0 and prior, WebAccess Dashboard versio
In Advantech WebAccess versions V8.2_20170817 and prior, WebAccess versions V8.3.0 and prior, WebAccess Dashboard versio
In Advantech WebAccess versions V8.2_20170817 and prior, WebAccess versions V8.3.0 and prior, WebAccess Dashboard versio
In Advantech WebAccess versions V8.2_20170817 and prior, WebAccess versions V8.3.0 and prior, WebAccess Dashboard versio
In Advantech WebAccess versions V8.2_20170817 and prior, WebAccess versions V8.3.0 and prior, WebAccess Dashboard versio
An attacker could use a specially crafted URL to delete files outside the WebAccess/NMS's (versions prior to 3.0.2) cont
WebAccess/NMS (versions prior to 3.0.2) does not properly sanitize user input and may allow an attacker to inject system
In Advantech WebAccess versions V8.2_20170817 and prior, WebAccess versions V8.3.0 and prior, WebAccess Dashboard versio
There are multiple ways an unauthenticated attacker could perform SQL injection on WebAccess/NMS (versions prior to 3.0.
GitHub PoC
Exploit-DB