CVE-2026-89262
CVE-2026-89262
MoguBlog through 6.2 contains an authorization bypass vulnerability in the comment deletion endpoint that performs ownership checks against request-body fields instead of the authenticated principal. Attackers can delete arbitrary comments and their replies by supplying comment UIDs and author UIDs obtained from unauthenticated listing endpoints.
Vulnerability class: IDOR (Insecure Direct Object Reference)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.005 (45.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 45.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Weakness classification (CWE)
References
- C04 - POST /web/comment/delete proof of concept (exploit)
- CommentRestApi.deleteBatch compares the stored author uid against a request-body field (technical-description)
- mogu_web WebSecurityConfig permits /web/comment/** for all callers (technical-description)
- MoguBlog releases (release-notes)
- Product (product)
- VulnCheck Advisory: MoguBlog through 6.2 Arbitrary Comment Deletion via Request-Body Ownership Check (third-party-advisory)
Frequently asked questions
- What is CVE-2026-89262?
- CVE-2026-89262 is a high-severity vulnerability, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 7.5/10. Published 2026-09-11.
- How severe is CVE-2026-89262?
- High severity. CVSS v3 base score is 7.5 out of 10.