Vulnerability · Published Oct 30, 2026 · Assigned by VulnCheck
CVE-2026-119763changelog.com before commit 7b35e829 Missing Authorization via Preview Routes
Medium 5.3
In plain English
A medium-severity missing authorization in changelog.com from thechangelog. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 42% of all known vulnerabilities).
Official description
changelog.com before commit 7b35e829 contains a missing authorization vulnerability that allows unauthenticated attackers to read unpublished content via preview routes in PostController, NewsIssueController and NewsItemController. Attackers can enumerate hashid post IDs, sequential newsletter slugs and integer news IDs against preview endpoints to read draft posts, unsent newsletters and declined news items.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| thechangelog | changelog.com | 0 – before 7b35e82934be93e8b0064299a611c98d55b3e0eb |
Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
References
- https://github.com/thechangelog/changelog.com/issues/581 issue-tracking
- https://hackmd.io/@hieund/changelog-com-preview-unpublished-content-missing-authz third-party-advisory
- https://github.com/thechangelog/changelog.com/commit/7b35e82934be93e8b0064299a611c98d55b3e0eb patch
- https://github.com/thechangelog/changelog.com/blob/73fdd9e19cb609573f9cd8ed195cd9abaeb24f8a/lib/changelog_web/controllers/post_controller.ex#L48-L49 technical-description
- https://github.com/thechangelog/changelog.com product
- VulnCheck Advisory: changelog.com before commit 7b35e829 Missing Authorization via Preview Routes third-party-advisory
- https://hackmd.io/@hieund/cve-2026-119763-changelog-com-preview-unpublished-content-missing-authz exploit