What’s Vulnerable › Vulnerabilities

CVE-2018-25082: zwczou WeChat SDK Python to_xml xml external entity reference

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-03-21 · updated 2026-06-17
• Weakness: CWE-611

Description

A vulnerability was found in zwczou WeChat SDK Python 0.3.0 and classified as critical. This issue affects the function validate/to_xml. The manipulation leads to xml external entity reference. The attack may be initiated remotely. Upgrading to version 0.5.5 is able to address this issue. The patch is named e54abadc777715b6dcb545c13214d1dea63df6c9. It is recommended to upgrade the affected component. The associated identifier of this vulnerability is VDB-223403.

Affected products

• zwczou WeChat SDK Python: before 0.5.5 — fixed in 0.5.5

How to fix

Upgrade to a fixed version: zwczou WeChat SDK Python 0.5.5. Check the vendor advisory for mitigations.

References

• https://github.com/zwczou/weixin-python/commit/e54abadc777715b6dcb545c13214d1dea63df6c9
• https://github.com/zwczou/weixin-python/pull/30
• https://github.com/zwczou/weixin-python/releases/tag/v0.5.5
• https://vuldb.com/?ctiid.223403
• https://vuldb.com/?id.223403
• https://github.com/zwczou/weixin-python/commit/e54abadc777715b6dcb545c13214d1dea63df6c9
• https://github.com/zwczou/weixin-python/pull/30
• https://github.com/zwczou/weixin-python/releases/tag/v0.5.5
• https://vuldb.com/?ctiid.223403
• https://vuldb.com/?id.223403

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