Fluent Forms < 6.2.1 - Subscriber+ Subscription Cancellation via IDOR
Priority MEDIUM 48Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
The Fluent Forms WordPress plugin before 6.2.1 does not properly verify ownership before processing a subscription cancellation request, allowing authenticated users with a low-privilege account to cancel subscriptions belonging to other users.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00209 11th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Fluent Forms (Unknown): 6.2.1
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- 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 |
|---|---|---|---|---|---|
| Unknown | Fluent Forms | before 6.2.1 | 6.2.1 | Patch available | CNA |
- Fluent Forms VendorUnknown Affected before 6.2.1 Fixed in 6.2.1 Patch available CNA
Remediation
- Fix · CNA Fluent Forms (Unknown) Fixed in 6.2.1
Timeline
- 2026-10-02 Threatist record created from CVE-2026-11880
- 2026-10-03 Alias added: GHSA-q7hq-w864-jq32
References
Sources
- CVE-2026-11880 · CVE Program
- CVE-2026-11880 · NVD
- FIRST EPSS
- GHSA-q7hq-w864-jq32 · 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