EUVD-2026-40919
GHSA-q7hq-w864-jq32
Severity by source
AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
Network-reachable endpoint requires authenticated low-privilege account; subscription ID enumeration raises complexity to High; impact is integrity-only with no confidentiality or availability consequence.
Primary rating from Vendor (WPScan).
CVSS VectorVendor: WPScan
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
Lifecycle Timeline
5DescriptionCVE.org
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.
AnalysisAI
Subscription cancellation authorization bypass in the Fluent Forms WordPress plugin (all versions before 6.2.1) permits any authenticated low-privilege user to cancel subscriptions belonging to other site members by submitting a crafted request referencing a victim's subscription identifier. The plugin fails to verify that the requesting user owns the referenced subscription before processing the cancellation, a classic Insecure Direct Object Reference (IDOR) pattern. …
Unlock full vulnerability intelligence
- Risk assessment & exploitation conditions
- Attack chain visualization
- Remediation with exact patch versions
- Threat intelligence from 22 sources
- Personal watchlist & email alerts
Free forever · No credit card required
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an active WordPress account with at minimum subscriber-level (low) privileges, as confirmed by the CVSS PR:L metric - unauthenticated exploitation is not possible. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 base score of 3.1 (Low) with vector AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N accurately reflects a constrained threat profile: the attack is network-accessible and requires no user interaction, but demands an authenticated low-privilege account (PR:L) and the ability to enumerate or guess valid subscription IDs owned by other users (AC:H). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker registers or uses an existing low-privilege subscriber account on a WordPress site running Fluent Forms before 6.2.1 and probes the subscription cancellation endpoint, iterating over plausible subscription ID values. Upon identifying a valid ID belonging to another user, the attacker submits a cancellation request; the plugin processes it without ownership validation, terminating the victim's subscription. … |
| Remediation | Update the Fluent Forms WordPress plugin to version 6.2.1 or later, which introduces proper ownership verification before processing subscription cancellation requests; this is the confirmed vendor-released patch per WPScan and EUVD data. … Detailed patch versions, workarounds, and compensating controls in full report. |
Threat intelligence, references, and detailed analysis are available after sign-in.
Same technique Information Disclosure
View allShare
External POC / Exploit Code
Leaving vuln.today