CVE-2026-18345WP User Manager <= 2.9.18 - Missing Authorization to Authenticated (Subscriber+) Stripe Account Hijack via Stripe Connect Callback
- 4.3MediumCVSS base score
- 0.34%Exploitation in 30 daysEPSS · top 73% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
The WP User Manager plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the Connect::complete() function in versions up to, and including, 2.9.18. The function is registered on the admin_init hook (which fires for every authenticated user that reaches /wp-admin/, including Subscribers) and performs no current_user_can() or nonce verification before fetching Stripe credentials from the external WPUM connect service and writing them (publishable key, secret key, gateway mode, and connected Stripe account ID) into the wpum_settings option via wpum_update_option()/update_option(). This makes it possible for authenticated attackers, with Subscriber-level access and above, to hijack the site's Stripe integration by completing their own Stripe Connect OAuth flow and then invoking the callback on the target site, causing all subsequent Stripe payments to be routed to the attacker's Stripe account.
Timeline
ID reserved
By Wordfence
- 55 days later
· 55 days later
Published
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| WordfenceCNA (assigner) | 3.1 | Medium4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
| NVDNVD · Deferred | 3.1 | Medium4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
- EPSS (exploitation in 30 days)
- 0.34% · top 73% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.3.
Affected products
wpusermanager · WP User Manager – User Profile Builder & Membership
- affected ≤ 2.9.18
References
References5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/ecae11ec-c952-4f5a-9e55-e2ac2fa05100?source=cve (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/wp-user-manager/tags/2.9.18/includes/integrations/stripe/Connect.php#L203 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/wp-user-manager/tags/2.9.18/includes/integrations/stripe/Connect.php#L21 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/wp-user-manager/tags/2.9.18/includes/integrations/stripe/Connect.php#L177 (opens in a new tab)
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3701837%40wp-user-manager&new=3701837%40wp-user-manager (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-84307 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-18345)Record last updated .