CVE-2026-28792 affects the TinaCMS CLI dev server, versions prior to 2.1.8, due to a permissive CORS configuration combined with a path traversal vulnerability. This allows a remote attacker to perform a browser-based drive-by attack, enabling enumeration, writing, and deletion of arbitrary files on a developer's machine. Rated as Critical with a CVSS score of 9.6, the vulnerability requires user interaction but can be exploited remotely with low complexity, leading to complete compromise of confidentiality, integrity, and availability. There is currently no evidence of active exploitation, public exploit code, or KEV listing, and it has received limited community attention.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 2.1.8CPE matchmatch criteria | cpe:2.3:a:ssw:tinacms\/cli:*:*:*:*:*:node.js:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.8 Bluesky, 0.5 Mastodon, and 1.2 GitHub mentions.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.