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TI-2017-14121 Aliases CVE-2017-20055GHSA-4g9g-f7m3-gwjm

BestWebSoft Contact Form Plugin Stored cross site scriting

Priority MEDIUM 58CWE-80Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-80.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0084 58th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
BestWebSoftContact Form Plugin4.0.0—No fix listedCNA
  • Contact Form Plugin VendorBestWebSoft Affected 4.0.0 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:bestwebsoft:contact_form:4.0.0:*:*:*:*:wordpress:*:*4.0.0VulnerableBestWebSoft
  • cpe:2.3:a:bestwebsoft:contact_form:4.0.0:*:*:*:*:wordpress:*:* Versions 4.0.0 Vulnerable ·BestWebSoft

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-20055
  2. 2026-10-03 Alias added: GHSA-4g9g-f7m3-gwjm

References

  • TI-2012-05433 BestWebSoft Contact Form contact_form.php cntctfrm_settings_page cross-site request forgery CVSS 3.1HIGH 8.8
  • TI-2017-13664 The contact-form-plugin plugin before 4.0.6 for WordPress has multiple XSS issues. CVSS 3.0MEDIUM 6.1
  • TI-2017-01471 Cross-site scripting in BestWebSoft Captcha CVSS 3.0MEDIUM 6.1
  • TI-2016-08907 The contact-form-plugin plugin before 4.0.2 for WordPress has XSS. CVSS 3.0MEDIUM 6.1
  • TI-2015-07672 The contact-form-plugin plugin before 3.96 for WordPress has XSS. CVSS 3.0MEDIUM 6.1
  • TI-2013-06133 The contact-form-plugin plugin before 3.3.5 for WordPress has XSS. CVSS 3.0MEDIUM 6.1
See all 10 →

Sources