Vulnerability · Published Mar 23, 2026 · Assigned by GitHub_M

CVE-2026-23484Blinko: Authenticated Arbitrary File Write - saveDevPlugin

Medium 5.3

In plain English

A medium-severity path traversal in blinko from blinkospace. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 29% of all known vulnerabilities).

Severity (CVSS 4.0)5.3Medium

Exploit odds (30 days)0.3%top 71.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Blinko is an AI-powered card note-taking project. In versions from 1.8.3 and prior, the fileName parameter is not filtered, allowing path traversal to write files anywhere on the file system. Moreover, this interface only requires authProcedure (normal user), not superAdminAuthMiddleware. At time of publication, there are no publicly available patches.

Affected products (as reported)

Vendor	Product	Versions
blinkospace	blinko	<= 1.8.3

Weakness: CWE-22 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

References

https://github.com/blinkospace/blinko/security/advisories/GHSA-7v3f-v6vf-jm9q x_refsource_CONFIRM