CVE Explorer

CVE-2026-1461

The Simple Membership plugin for WordPress is vulnerable to Improper Handling of Missing Values in all versions up to, and including, 4.7.0 via the Stripe webhook handler. This is due to the plugin only validating webhook signatures when the stripe-webhook-signing-secret setting is configured, which is empty by default. This makes it possible for unauthenticated attackers to forge Stripe webhook events to manipulate membership subscriptions, including reactivating expired memberships without pay

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:2b33877ecd8e8e2a744d36ec3df8184d4bf03cd65968746c033e8445f210b487

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"defaultStatus":"unaffected","product":"Simple Membership","vendor":"wpinsider-1","versions":[{"lessThanOrEqual":"4.7.0","status":"affected","version":"0","versionType":"semver"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:c59abd9097ea8e1f9081ee33ca9c5d5cf5b34bd293002bc392b288c62e12ee00 · sha256:542df045eee30bf8… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"baseScore":6.5,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:c59abd9097ea8e1f9081ee33ca9c5d5cf5b34bd293002bc392b288c62e12ee00 · sha256:542df045eee30bf8… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"cweId":"CWE-230","description":"CWE-230 Improper Handling of Missing Values","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:c59abd9097ea8e1f9081ee33ca9c5d5cf5b34bd293002bc392b288c62e12ee00 · sha256:542df045eee30bf8… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions

{"url":"https://plugins.trac.wordpress.org/browser/simple-membership/trunk/classes/class.swpm-wp-loaded-tasks.php#L90"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:c59abd9097ea8e1f9081ee33ca9c5d5cf5b34bd293002bc392b288c62e12ee00 · sha256:542df045eee30bf8… · /containers/cna/references/2

{"url":"https://plugins.trac.wordpress.org/browser/simple-membership/trunk/ipn/swpm-stripe-webhook-handler.php#L26"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:c59abd9097ea8e1f9081ee33ca9c5d5cf5b34bd293002bc392b288c62e12ee00 · sha256:542df045eee30bf8… · /containers/cna/references/1

{"url":"https://plugins.trac.wordpress.org/changeset/3453404/"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:c59abd9097ea8e1f9081ee33ca9c5d5cf5b34bd293002bc392b288c62e12ee00 · sha256:542df045eee30bf8… · /containers/cna/references/3

{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/4e4df9a6-8f7d-428b-a596-0751ca047169?source=cve"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:c59abd9097ea8e1f9081ee33ca9c5d5cf5b34bd293002bc392b288c62e12ee00 · sha256:542df045eee30bf8… · /containers/cna/references/0

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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