CVE-2026-89260

High

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.

SeverityHigh

CVSS7.5

Exploit probability—

ProductMoguBlog

PublishedSep 11, 2026

First seenSep 11, 2026

Weakness typeCWE-611XML external entity (XXE)

How to fix

Vendor advisories

gitee.com/moxi159753/mogu_blog_v2/releases

Affected products

Product	Affected versions	Fixed in
moxi624 MoguBlog	v ≤ 6.2	—

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