{"id":"CVE-2026-89264","aliases":["EUVD-2026-76137","GHSA-7hrx-vv78-95j8"],"status":"published","title":"MoguBlog through 6.2 Comment Author Spoofing via Request-Body Identity","description":"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.","severity":{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00366,"percentile":0.30634,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-639"],"published":"2026-09-11T15:25:18Z","modified":"2026-09-24T14:21:40Z","products":[{"vendor":"moxi624","product":"mogublog"}],"references":[{"url":"https://github.com/LinYuanyi1/cve-request-poc/blob/master/mogublog-poc/C12_comment_add_author_spoof.py","tags":["exploit"]},{"url":"https://github.com/moxi624/mogu_blog_v2/blob/025d78c7ac7e19b1abf796fa3cc158d855723d15/mogu_web/src/main/java/com/moxi/mogublog/web/restapi/CommentRestApi.java","tags":["technical-description"]},{"url":"https://gitee.com/moxi159753/mogu_blog_v2/releases","tags":["release-notes"]},{"url":"https://github.com/moxi624/mogu_blog_v2","tags":["product"]},{"url":"https://www.vulncheck.com/advisories/mogublog-through-6.2-comment-author-spoofing-via-request-body-identity","tags":["third-party-advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89264"},{"url":"https://github.com/advisories/GHSA-7hrx-vv78-95j8"}],"sources":{"cve":[{"id":"CVE-2026-89264","title":"MoguBlog through 6.2 Comment Author Spoofing via Request-Body Identity","description":"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.","status":"published","published":"2026-09-11T15:25:18.616Z","modified":"2026-09-24T14:21:40.414Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"},{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-639"],"updated_at":"2026-11-02T14:19:55.526923Z"}],"euvd":[{"id":"EUVD-2026-76137","description":"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.","status":"published","published":"2026-09-11T15:25:18Z","modified":"2026-09-24T14:21:40Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T17:27:57.402158Z"}],"ghsa":[{"id":"GHSA-7hrx-vv78-95j8","title":"MoguBlog through 6.2 fails to validate the comment author identity in the POST /web/comment/add...","description":"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.","status":"published","published":"2026-09-11T18:31:25Z","modified":"2026-09-11T18:31:27Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"},{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"cwes":["CWE-639"],"updated_at":"2026-11-02T15:11:45.091927Z"}],"nvd":[{"id":"CVE-2026-89264","description":"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.","status":"published","published":"2026-09-11T16:17:51.193Z","modified":"2026-09-11T17:35:21.44Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"},{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-639"],"updated_at":"2026-11-02T14:12:46.271848Z"}]}}