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TI-2026-82309 Aliases CVE-2026-115300GHSA-2663-mp38-cxqg

Missing CSRF checks in Contact Form by Supsystic let attackers delete data

Priority LOW 19CWE-352Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Tampering
Confidentiality · integrity · availability
None · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-352.

Summary

The Contact Form by Supsystic WordPress plugin before 1.11.1 does not validate a CSRF token or request origin on two administrator-only actions. These actions bulk-delete captured form submissions and wipe a form's statistics, and CWE-352 applies. An attacker can permanently destroy a site's stored contact leads and analytics by tricking a logged-in administrator into sending a forged request, with user interaction required.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

The Contact Form by Supsystic WordPress plugin before 1.11.1 does not validate a CSRF token or request origin on two administrator-only actions that bulk-delete captured form submissions and wipe a form's statistics, allowing attackers to permanently destroy a site's stored contact leads and analytics by tricking a logged-in administrator into sending a forged request.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00098 0th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Contact Form by Supsystic (Unknown): 1.11.1

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 1.11.11.11.1Patch availableCNA
  • Contact Form by Supsystic VendorUnknown Affected before 1.11.1 Fixed in 1.11.1 Patch available CNA

Remediation

Update Contact Form by Supsystic to version 1.11.1 or later.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

  • Fix · CNA Contact Form by Supsystic (Unknown) Fixed in 1.11.1

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Contact Form by Supsystic 1.11.1

    5 records Highest priority Priority LOW 5 LOW

    Other records, highest priority first

    • TI-2026-82310 Server-side template injection in Contact Form by Supsystic pluginPriority LOW 34
    • TI-2026-82311 Contact Form by Supsystic lets attackers delete statisticsPriority LOW 29
    • TI-2026-82308 CSRF in Contact Form by Supsystic lets attackers change mail settingsPriority LOW 23
    Show all 5 records →

Timeline

  1. 2026-10-29 Threatist record created from CVE-2026-115300
  2. 2026-10-29 Alias added: GHSA-2663-mp38-cxqg
  3. 2026-10-29 CVSS score added · CISA ADP
  4. 2026-10-29 Weakness changed · CISA ADP
  5. 2026-10-29 CISA SSVC decision points changed

References

Exploit 1

Sources

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