Reference page — cumulative record through Saturday, October 3, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-89260

CVE-2026-89260HIGH

moxi624 MoguBlog — MoguBlog through 6.2 XML External Entity Injection in the Unauthenticated WeChat Callback Endpoint

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   N   L   N   N   N   H   N   N    8.7   .0073   52.7     —

AFFECTED
  Product   Versions     Fixed
  MoguBlog  unspecified  —

TIMELINE
  Sep 11  Reserved by VulnCheck
  Sep 11  Published (CNA: VulnCheck)
  Sep 24  EXPLOIT PUBLISHED — CVE-2026-89260 (moxi624 MoguBlog). Public exploit reference added.

CWE-611 · CNA: VulnCheck · CVSS v4.0 · 6 references · NVD status: Deferred

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
September 11, 2026	Reserved	Reserved by VulnCheck
September 11, 2026	Published	Published (CNA: VulnCheck)
September 24, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-89260 (moxi624 MoguBlog). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
moxi624	MoguBlog	—	—	—

Weaknesses

CWE-611

References (6)

https://gitee.com/moxi159753/mogu_blog_v2/releases [release-notes]
https://github.com/LinYuanyi1/cve-request-poc/blob/master/mogublog-poc/C10_wechat_callback_unsigned.py [exploit]
https://github.com/moxi624/mogu_blog_v2 [product]
https://github.com/moxi624/mogu_blog_v2/blob/025d78c7ac7e19b1abf796fa3cc158d855723d15/mogu_utils/src/main/java/com/moxi/mogublog/utils/wechat/SignUtil.java [technical-description]
https://github.com/moxi624/mogu_blog_v2/blob/025d78c7ac7e19b1abf796fa3cc158d855723d15/mogu_web/src/main/java/com/moxi/mogublog/web/restapi/WechatRestApi.java [technical-description]
https://www.vulncheck.com/advisories/mogublog-through-6.2-xml-external-entity-injection-in-the-unauthenticated-wechat-callback-endpoint [third-party-advisory]

Authoritative record: CVE-2026-89260 at cve.org

Vendors: moxi624

Weaknesses: CWE-611

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-89260 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Saturday, October 3, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.