FluentCRM <= 2.9.87 - Unauthenticated Blind Server-Side Request Forgery via 'SubscribeURL' Parameter
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
The FluentCRM – Email Newsletter, Automation, Email Marketing, Email Campaigns, Optins, Leads, and CRM Solution plugin for WordPress is vulnerable to Blind Server-Side Request Forgery in all versions up to, and including, 2.9.87 via the 'SubscribeURL' parameter. This makes it possible for unauthenticated attackers to make web requests to arbitrary locations originating from the web application and can be used to query and modify information from internal services. Exploitation requires that the SES bounce handling key ('_fc_bounce_key') has never been stored (i.e., the site is in its default/unconfigured state with respect to SES bounce handling) as visiting the bounce configuration page auto-generates and stores a random key that causes the authentication check to evaluate correctly and reject unauthenticated requests.
Why it matters now
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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| techjewel | FluentCRM – Email Newsletter, Automation, Email Marketing, Email Campaigns, Optins, Leads, and CRM Solution | up to 2.9.87 | — | No fix listed | CNA |
- FluentCRM – Email Newsletter, Automation, Email Marketing, Email Campaigns, Optins, Leads, and CRM Solution Vendortechjewel Affected up to 2.9.87 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-7798
- 2026-10-03 Alias added: GHSA-pq4x-338r-cq3h
References
Other 8
- https://www.wordfence.com/threat-intel/vulnerabilities/id/5c3ca2d7-7af9-401f-bc5a-1796c6253cb0?source=cve
- https://plugins.trac.wordpress.org/browser/fluent-crm/trunk/app/Hooks/Handlers/ExternalPages.php#L113
- https://plugins.trac.wordpress.org/browser/fluent-crm/tags/2.9.87/app/Hooks/Handlers/ExternalPages.php#L113
- https://plugins.trac.wordpress.org/browser/fluent-crm/trunk/app/Hooks/Handlers/ExternalPages.php#L85
- https://plugins.trac.wordpress.org/browser/fluent-crm/tags/2.9.87/app/Hooks/Handlers/ExternalPages.php#L85
- https://plugins.trac.wordpress.org/browser/fluent-crm/trunk/app/Hooks/Handlers/ExternalPages.php#L87
- https://plugins.trac.wordpress.org/browser/fluent-crm/tags/2.9.87/app/Hooks/Handlers/ExternalPages.php#L87
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3532271%40fluent-crm&new=3532271%40fluent-crm&sfp_email=&sfph_mail=
More techjewel vulnerabilities
- TI-2024-08826 Deserialization of untrusted data in techjewel FluentSMTP – WP SMTP Plugin with Amazon… CVSS 3.1CRITICAL 9.8
- TI-2026-13364 Deserialization of untrusted data in techjewel Fluent Forms Pro Add On Pack CVSS 3.1HIGH 8.8
- TI-2026-04723 Fluent Forms <= 6.1.21 - Authenticated (Subscriber+) Authorization Bypass via 'form_id' Parameter CVSS 3.1HIGH 8.2
- TI-2026-04722 Fluent Forms <= 6.2.0 - Authenticated (Subscriber+) Authorization Bypass via 'table' Parameter CVSS 3.1HIGH 8.2
- TI-2026-02060 Fluent Forms Pro Add On Pack <= 6.1.17 - Missing Authorization to Unauthenticated Payment Status modification CVSS 3.1HIGH 7.5
- TI-2026-02001 Fluent Forms Pro <= 6.1.17 - Unauthenticated Stored Cross-Site Scripting via Draft Form Submission CVSS 3.1HIGH 7.2
Sources
- CVE-2026-7798 · CVE Program
- CVE-2026-7798 · NVD
- FIRST EPSS
- GHSA-pq4x-338r-cq3h · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences