MoguBlog through 6.2 XML External Entity Injection in the Unauthenticated WeChat Callback Endpoint
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-611 and the CVSS impact.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-89260
- 2026-10-03 Alias added: GHSA-92wh-xp96-v6mj
References
More moxi624 vulnerabilities
- TI-2026-60436 MoguBlog through 6.2 Arbitrary Comment Deletion via Request-Body Ownership Check CVSS 4.0HIGH 8.7
- TI-2026-60437 MoguBlog through 6.2 Missing Authentication on the Comment Email-Notification Endpoint CVSS 4.0MEDIUM 6.9
- TI-2026-60435 MoguBlog through 6.2 Missing Authentication for Elasticsearch Index Management Endpoints CVSS 4.0MEDIUM 6.9
- TI-2026-05812 Server-side request forgery in moxi624 Mogu Blog v2 CVSS 4.0MEDIUM 6.9
- TI-2026-70957 MoguBlog Credential Disclosure via getSystemConfig Endpoint CVSS 4.0HIGH 7.1
- TI-2026-70960 Access control flaw in MoguBlog lets admins move others' files CVSS 4.0MEDIUM 5.3
Sources
- CVE-2026-89260 · CVE Program
- CVE-2026-89260 · NVD
- FIRST EPSS
- GHSA-92wh-xp96-v6mj · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences