CVE-2018-13439: Improper Restriction of XML External Entity Reference

May 14, 2022 (updated July 25, 2023)

WXPayUtil in WeChat Pay Java SDK allows XXE attacks involving a merchant notification URL.

References

github.com/advisories/GHSA-gqgv-2gp3-qqp3
nvd.nist.gov/vuln/detail/CVE-2018-13439
packetstormsecurity.com/files/148390/WeChat-Pay-SDK-XXE-Injection.html

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