Vulnerability · Published Aug 18, 2026 · Assigned by GitHub_M
CVE-2026-49226Vvveb post authorization bypass allows Authors to view, duplicate, or delete other Authors' posts
High 8.3
In plain English
A high-severity authorization bypass via user-controlled key in Vvveb from givanz. 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
Vvveb is a powerful and easy to use CMS with page builder to build websites, blogs or ecommerce stores. Prior to 1.0.8.4, Vvveb backend post operations allow a low-privileged Author to access posts owned by another Author. The admin/controller/content/posts.php controller permits filter[admin_id] to replace the server-selected admin_id restriction and accepts a caller-controlled post_id for duplicate and delete actions, while admin/sql/sqlite/post.sql does not consistently enforce post.admin_id. An attacker can view post metadata, discover post identifiers, duplicate posts, or delete posts and related content, exposing private drafts and causing content pollution, data loss, or business disruption. This issue is fixed in version 1.0.8.4.
Affected products (as reported)
Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H
References
- https://github.com/givanz/Vvveb/security/advisories/GHSA-xxx7-8f3v-g9p6 x_refsource_CONFIRM
- https://github.com/givanz/Vvveb/commit/0ce6ba6baf5901aaffa993857ee71c43481a5353 x_refsource_MISC
- https://github.com/givanz/Vvveb/releases/tag/1.0.8.4 x_refsource_MISC