CVE-2026-7798Public exploitNetwork attack vector

Internal service access via unauthenticated SubscribeURL requests

Published May 22, 2026 · Updated May 22, 2026

Blind SSRF in WPManageNinja FluentCRM 2.9.87 and earlier allows remote attackers to send server-originated requests via SubscribeURL. The SES bounce handler accepts SubscribeURL and issues the request when _fc_bounce_key is absent, because the missing stored key leaves its authentication check ineffective. Only sites whose SES bounce handling key has never been stored are exposed; requests can query or modify reachable internal services.

CVSS severity5.4
Medium
EPSS probability0.69%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Blind SSRF in WPManageNinja FluentCRM 2.9.87 and earlier allows remote attackers to send server-originated requests via SubscribeURL. The SES bounce handler accepts SubscribeURL and issues the request when _fc_bounce_key is absent, because the missing stored key leaves its authentication check ineffective. Only sites whose SES bounce handling key has never been stored are exposed; requests can query or modify reachable internal services.

The record

CVE
CVE-2026-7798
Published
May 22, 2026
Updated
May 22, 2026
Vendor
Mahmudul Hasan Arif
Product
FluentCRM
Classifications
CWE-918, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 22, 2026CVE publishedPublication date reported by the CVE source.
  2. May 22, 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 <=2.9.87

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Mahmudul Hasan Arif · FluentCRMversion=0 <=2.9.87

Published CVSS scores

5.4WordfenceCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N

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.

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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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1190Exploit Public-Facing Application

Public exploit references

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Technologies

Your stack

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Your stack

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