CVE-2026-89262

MoguBlog through 6.2 Arbitrary Comment Deletion via Request-Body Ownership Check

HIGH 8.7EPSS 0.5%

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.

Affected: moxi624 · MoguBlog
CVSS v4.0 VULNCHECK: 8.7 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/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
CVSS v3.1 VULNCHECK: 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS: 0.54% chance of exploitation in the next 30 days, 44th percentile
Published: 2026-09-11
Updated: 2026-09-24

Proof-of-concept exploits (1)

LinYuanyi1/cve-request-poc/blob/master/mogublog-poc/C04_comment_delete_idor.py1★ · 2026-09-19

CVE-2026-89262

Proof-of-concept exploits (1)

References