CVE-2026-103288CWE-639

CVE-2026-103288

Medium · published October 1, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
9.7
In the wild
Unconfirmed
What it is

Ghost, an open-source publishing platform, contains an input validation flaw in its comment like feature in versions from 5.9.0 before 6.44.1. An authenticated member can delete comment likes or dislikes belonging to other users that they are not authorized to delete, resulting in an authorization bypass and unauthorized modification of comment engagement data.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
CVSS v4.0
7.1 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
EPSS
0.00203 · 9.7th percentile
Weakness
CWE-639 · Authorization Bypass Through User-Controlled Key
Published
2026-10-01T15:17Z
References (2)
https://github.com/TryGhost/Ghost/security/advisories/GHSA-qrh6-cwg3-343x · [email protected]https://www.vulncheck.com/advisories/ghost-5.9.0-before-6.44.1-authorization-bypass-via-comment-like · [email protected]
EPSS history
Timeline
  • 03 OCT 03:41Z
    EPSS moved — → 0%
    epss
  • 01 OCT 10:42Z
    Ghost 5.9.0 before 6.44.1 Authorization Bypass via Comment Like
    cvelistv5