CVE-2026-89264

MoguBlog through 6.2 fails to validate the comment author identity in the POST /web/comment/add endpoint, allowing authenticated users to post comments attributed to any other user. Attackers can supply arbitrary userUid values in the request body to impersonate other accounts including administrators.

  • Published Sep 11, 2026
  • CVSS 5.3 medium
  • 0.4% chance of exploitation in the next 30 days (EPSS)

Affected software

CVE-2026-89264 at the National Vulnerability Database