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TI-2025-43977 Aliases CVE-2025-15705GHSA-3f2v-jx9m-xwjg

Stored cross-site scripting in Contact Form by Supsystic form name

Priority LOW 16CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-79.

Summary

The Contact Form by Supsystic WordPress plugin before 1.8.0 does not sanitise and escape a form name, which is a cross-site scripting flaw (CWE-79). An authenticated user with access to the form editor can inject arbitrary web scripts that run when another user views the form. On multisite installations, where administrators lack the unfiltered_html capability, this crosses a privilege boundary. The CVSS vector rates the attack as requiring high privileges and user interaction.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

The Contact Form by Supsystic WordPress plugin before 1.8.0 does not sanitise and escape a form name, allowing users with access to the form editor to inject arbitrary web scripts that execute when another user views the form. On multisite installations, where administrators do not hold the unfiltered_html capability, this crosses a privilege boundary.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00142 3rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Contact Form by Supsystic (Unknown): 1.8.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
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
UnknownContact Form by Supsysticbefore 1.8.01.8.0Patch availableCNA
  • Contact Form by Supsystic VendorUnknown Affected before 1.8.0 Fixed in 1.8.0 Patch available CNA

Remediation

Update Contact Form by Supsystic to version 1.8.0 or later.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

  • Fix · CNA Contact Form by Supsystic (Unknown) Fixed in 1.8.0

Timeline

  1. 2026-10-25 Threatist record created from CVE-2025-15705
  2. 2026-10-26 CVSS score added · CISA ADP
  3. 2026-10-26 Weakness changed · CISA ADP
  4. 2026-10-26 CISA SSVC decision points changed
  5. 2026-10-27 Alias added: GHSA-3f2v-jx9m-xwjg

References

Exploit 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences