CVE-2026-89260 MoguBlog through 6.2 XML External Entity Injection in the Unauthenticated WeChat Callback Endpoint

High 8.7 Published 11 Sep 2026 Updated 24 Sep 2026

Exploited in the wild: Not known
Fix: None listed

What is CVE-2026-89260?

CVE-2026-89260 is a high-severity vulnerability in moxi624 MoguBlog, published on 11 Sep 2026.

Official description

MoguBlog through 6.2 contains an XML external entity injection vulnerability in the WeChat callback handler at POST /wechat/wechatCheck. The WechatRestApi.index() method passes the raw request body to SignUtil.xmlToMap(), which uses an unhardened dom4j SAXReader without DTD or external-entity restrictions. Unauthenticated remote attackers can submit DOCTYPE declarations with external parameter entities to read arbitrary local files or trigger outbound HTTP requests, with resolved entities reflected in error responses.

Weakness: CWE-611

Which versions are affected by CVE-2026-89260?

How do I fix CVE-2026-89260?

No fix has been published for CVE-2026-89260 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-89260 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-89260 exists.

Sources

Also known as GHSA-92wh-xp96-v6mj.