CVE-2025-8593Network attack vector

Subscriber-level plugin installation via missing capability check

Published Oct 11, 2025 · Updated Apr 8, 2026

Authorization bypass in WesternDeal's GSheetConnector for Gravity Forms 1.3.27 and earlier allows remote authenticated users to install plugins. The install_plugin function performs installation without checking whether the caller has the required WordPress capability. Subscriber-level access is sufficient, and an installed malicious plugin can execute arbitrary PHP code on the server.

CVSS severity8.8
High
EPSS probability0.43%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in WesternDeal's GSheetConnector for Gravity Forms 1.3.27 and earlier allows remote authenticated users to install plugins. The install_plugin function performs installation without checking whether the caller has the required WordPress capability. Subscriber-level access is sufficient, and an installed malicious plugin can execute arbitrary PHP code on the server.

The record

CVE
CVE-2025-8593
Published
Oct 11, 2025
Updated
Apr 8, 2026
Vendor
WesternDeal Web Solution
Product
GSheetConnector for Gravity Forms
Classifications
CWE-862, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 11, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=1.3.27

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

WesternDeal Web Solution · GSheetConnector for Gravity Formsversion=0 <=1.3.27

Published CVSS scores

8.8WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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