High severity7.5NVD Advisory· Published Sep 11, 2026· Updated Sep 11, 2026
CVE-2026-89260
CVE-2026-89260
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.
Affected products
3(expand)+ 1 more
- (no CPE)
- (no CPE)range: <=6.2
- Range: <=6.2
Patches
Vulnerability mechanics
References
5- gitee.com/moxi159753/mogu_blog_v2/releasesnvd
- github.com/LinYuanyi1/cve-request-poc/blob/master/mogublog-poc/C10_wechat_callback_unsigned.pynvd
- github.com/moxi624/mogu_blog_v2/blob/025d78c7ac7e19b1abf796fa3cc158d855723d15/mogu_utils/src/main/java/com/moxi/mogublog/utils/wechat/SignUtil.javanvd
- github.com/moxi624/mogu_blog_v2/blob/025d78c7ac7e19b1abf796fa3cc158d855723d15/mogu_web/src/main/java/com/moxi/mogublog/web/restapi/WechatRestApi.javanvd
- www.vulncheck.com/advisories/mogublog-through-6.2-xml-external-entity-injection-in-the-unauthenticated-wechat-callback-endpointnvd
News mentions
0No linked articles in our index yet.