CVE-2026-89260
MoguBlog through 6.2 contains an XML external entity injection vulnerability in the WeChat callback handler at POST /wechat/wechatCheck.
Impact
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.
Affected products
| Product | Affected versions |
|---|---|
| MoguBlog | through 6.2 |
Versions were read from the advisory text. No structured product data has been published for this record yet.
Weakness classification
References
- NVD record
- CVE.org record
- https://gitee.com/moxi159753/mogu_blog_v2/releases
- https://github.com/LinYuanyi1/cve-request-poc/blob/master/mogublog-poc/C10_wechat_callback_unsigned.py
- https://github.com/moxi624/mogu_blog_v2
- https://github.com/moxi624/mogu_blog_v2/blob/025d78c7ac7e19b1abf796fa3cc158d855723d15/mogu_utils/src/main/java/com/moxi/mogublog/utils/wechat/SignUtil.java
- https://github.com/moxi624/mogu_blog_v2/blob/025d78c7ac7e19b1abf796fa3cc158d855723d15/mogu_web/src/main/java/com/moxi/mogublog/web/restapi/WechatRestApi.java
- https://www.vulncheck.com/advisories/mogublog-through-6.2-xml-external-entity-injection-in-the-unauthenticated-wechat-callback-endpoint