CVE-2018-20318

CRITICAL

An issue was discovered in weixin-java-tools v3.2.0. There is an XXE vulnerability in the getXmlDoc method of the BaseWxPayResult.java file.

Affects 1 product across 1 vendor.

CVSS 3.09.8
EPSS1.7%
Percentile76th
PatchUnknown
CVSS Vector — Plain English Remotely exploitable over the network, low complexity, no authentication required, no user interaction needed, impact contained to the vulnerable component, full confidentiality impact, full integrity impact, full availability impact.
CWE Weakness Definitions
CWE-611: CWE-611
Related Attack Patterns (CAPEC)
CAPEC-221 Data Serialization External Entities Blowup
via CWE-611

Mapping is CWE-to-CAPEC per MITRE CAPEC 3.9.

◆ AI Analysis — automated analysis, not human-reviewed

This vulnerability was disclosed in 2018. A critical vulnerability affects Wxjava Project systems (CVE-2018-20318). No public exploit code is currently available. Isolate affected systems if patching is not feasible.

BSID: BS-2018-GLOBAL-128314-C • Model: rule-based-v1 • Confidence: MEDIUM

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Frequently Asked Questions
What is CVE-2018-20318?
This vulnerability was disclosed in 2018. A critical vulnerability affects Wxjava Project systems (CVE-2018-20318). No public exploit code is currently available. Isolate affected systems if patching is not feasible.
What is the CVSS score for CVE-2018-20318?
CVE-2018-20318 has CVSS 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS: 1.7%.
Is CVE-2018-20318 actively exploited?
No confirmed active exploitation of CVE-2018-20318 as of 2026-05-30.
How do I remediate CVE-2018-20318?
Priority: MEDIUM.
What systems are affected by CVE-2018-20318?
CVE-2018-20318 affects Wxjava Project Wxjava.
Vulnerability Details
CVE IDCVE-2018-20318
BSIDBS-2018-GLOBAL-128314-C BreachSpider Global ID
CVSS VectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published2018-12-21
Last Modified2024-11-21
ICS Relevance0%
Weakness (CWE)
CWE-611
SourceNVD
Official Description

An issue was discovered in weixin-java-tools v3.2.0. There is an XXE vulnerability in the getXmlDoc method of the BaseWxPayResult.java file.

Source: NIST NVD / MITRE CVE Database

Attack Vector Analysis — CITED Relevance

Vulnerability details: An issue was discovered in weixin-java-tools v3.2.0. There is an XXE vulnerability in the getXmlDoc method of the BaseWxPayResult.java file. CVSS vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Exploitation Likelihood: LOW

Affected Products
VendorProductAffected Versions
Wxjava Project Wxjava 3.2.0
Remediation

No official vendor advisory link on record. See the CVE record →

Threat Intelligence
● Threat Intelligence Validated: October 2026 | Threat Age: 2856 Days
CISA known-exploitedNot in KEV catalog
Public ExploitNot confirmed
PoC CodeNot confirmed
AI Enrichment Record — provenance & audit hash
Modelrule-based-v1
ConfidenceMEDIUM
Enriched At2026-05-24
SHA-512 Audit Hash8bbbef9641af3295fa6011bea110e0d7bae5c41902188733b128869981193121f66d83a1beb1ccd5e2dad5fe68b39dcbe45ab431c50bb48c78e973945d47c68d
Related CVEs affecting Wxjava Project
CVE-2019-5312 9.8 An issue was discovered in weixin-java-tools v3.3.0. There is an XXE vulnerab...
View all Wxjava Project CVEs →

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