# CVE-2026-23483: Blinko: Unauthorized Arbitrary File Read - /plugins

> Attackers can read arbitrary files via path traversal in the plugin file server endpoint of the Blinko note-taking application.

- **Severity:** Medium 6.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 23 Mar 2026
- **Updated:** 24 Mar 2026
- **Also known as:** GHSA-54c7-9gxh-fg9v

## What is CVE-2026-23483?

CVE-2026-23483 is a medium-severity path traversal vulnerability in blinkospace blinko, published on 23 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Blinko is an AI-powered card note-taking project. In versions from 1.8.3 and prior, the plugin file server endpoint uses join() to concatenate paths but does not verify if the final path is within the plugins directory, leading to path traversal. At time of publication, there are no publicly available patches.

Weakness: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory)

## Which versions are affected by CVE-2026-23483?

It affects 1 product.


Products: Blinko Blinko.

## How do I fix CVE-2026-23483?

No fix has been published for CVE-2026-23483 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-23483 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-23483 exists.

Public exploit code:

- Blinko <= 1.8.3 - Path Traversal via /plugins (nuclei): http/cves/2026/CVE-2026-23483.yaml

## Other vulnerabilities in blinkospace blinko

- [CVE-2026-23882](https://insights.sbomify.com/CVE-2026-23882/): Blinko: Admin RCE - MCP Server Command Injection (high 8.6)
- [CVE-2026-23482](https://insights.sbomify.com/CVE-2026-23482/): Blinko: Unauthorized Arbitrary File Read - /api/file/temp (high 8.2)
- [CVE-2026-23485](https://insights.sbomify.com/CVE-2026-23485/): Blinko: Unauthorized Path Traversal File Enumeration - music-metadata (medium 6.9)
- [CVE-2026-23486](https://insights.sbomify.com/CVE-2026-23486/): Blinko: Unauthorized User Information Leak (medium 6.9)
- [CVE-2026-23488](https://insights.sbomify.com/CVE-2026-23488/): Blinko: multiple interfaces in the comment feature allow unauthorized access (medium 6.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-23483 and fix it if it is affected.

What it is: CVE-2026-23483 is a medium-severity path traversal vulnerability in blinkospace blinko, published on 23 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-23483 exists.

Affected product: blinkospace blinko. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-23483/ (Markdown: https://insights.sbomify.com/CVE-2026-23483/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-23483
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-23483
- OSV: https://osv.dev/vulnerability/CVE-2026-23483

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-23483/
Summaries are generated and may contain mistakes; the official description above is the record.