CVE-2026-89260

MoguBlog through 6.2 XML External Entity Injection in the Unauthenticated WeChat Callback Endpoint

Published Sep 11, 2026 CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Moxi624
Moxi624 mogu Blog V2
Vendors & Products Moxi624
Moxi624 mogu Blog V2
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title MoguBlog through 6.2 XML External Entity Injection in the Unauthenticated WeChat Callback Endpoint
First Time appeared Mogublog Project
Mogublog Project mogublog
Weaknesses CWE-611
CPEs cpe:2.3:a:mogublog_project:mogublog:*:*:*:*:*:*:*:*
Vendors & Products Mogublog Project
Mogublog Project mogublog
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Sep 24, 2026, 2:21 PM
Reserved
Sep 11, 2026, 10:52 AM
Status
Deferred
Published
Sep 11, 2026, 4:17 PM
Modified
Sep 11, 2026, 9:17 PM