EUVD-2026-72697
GHSA-5qhm-7c6f-ffj5
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Fully unauthenticated network endpoint, no complexity; overwrites merchant credentials (I:H) with no confidentiality exfiltration or availability impact.
Primary rating from Vendor (Wordfence).
CVSS VectorVendor: Wordfence
Lifecycle Timeline
2DescriptionCVE.org
The Event Tickets and Registration plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the Stripe OAuth return endpoint in all versions up to, and including, 5.27.4. This makes it possible for unauthenticated attackers to overwrite the site's Stripe merchant credentials (access tokens, publishable keys, and account ID), diverting all subsequent payment processing to the attacker's Stripe account.
Articles & Coverage 1
AnalysisAI
Unauthenticated payment credential hijacking in the Event Tickets and Registration WordPress plugin (StellarWP, all versions ≤5.27.4) allows any remote attacker to silently replace the site's Stripe merchant account credentials - access tokens, publishable keys, and account ID - via a missing capability check on the plugin's Stripe OAuth return endpoint. Once the attacker's own Stripe credentials are stored, all subsequent ticket purchases by legitimate customers are processed into the attacker's account with no visible indication to the buyer or site administrator. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The target WordPress site must have the Event Tickets and Registration plugin installed and active at version 5.27.4 or earlier. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 7.5 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N) accurately encodes the attack surface: fully network-reachable, no complexity, no authentication, immediate integrity compromise. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Update the Event Tickets and Registration plugin to a version above 5.27.4 immediately; the fix is confirmed in WordPress SVN changeset 3472837 (https://plugins.trac.wordpress.org/changeset/3472837/), which adds a proper capability check to the Stripe OAuth return endpoint. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Audit your Stripe account's credential history and recent transactions for unauthorized modifications; immediately disable the Event Tickets and Registration plugin if currently deployed, or switch to an alternative payment processor. …
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External POC / Exploit Code
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