CVE-2026-18467: Paytium: Mollie payment forms & donations (WordPress plugin) · Improper Privilege Management
Affects Paytium: Mollie payment forms & donations (WordPress plugin)Source CVE Database V5
Not known to be exploited · CVSS 9.8 Critical.
Data as of 6 Nov 2026, 23:24 UTC
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 35% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 24 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 7 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| paytiumsupportPaytium: Mollie payment forms & donations | Affected
| Fixed in– |
AI-suggested
A patch fixing this vulnerability is available in version 5.0.3 of the Paytium plugin. Users should upgrade to a version later than 5.0.3 to remediate the issue. Since the vulnerability exists in all versions up to and including 5.0.3, upgrading beyond 5.0.3 is necessary. No vendor advisory content was provided to contradict this; thus, upgrading is the recommended mitigation.
Description
The Paytium: Mollie payment forms & donations plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 5.0.3. The 5.0.3 patch introduced a wp_hash()/hash_equals() signature gate on the pt-paytium-user-data field, but left a second filter — pt_cf_checkout_meta(), registered on the pt_meta_values hook after the signed builder — that copies every $_POST['pt_form_field'][*] key verbatim into the payment meta array without any signature verification; this allows the pt-user-role value it copies to overwrite the signed path's output, after which paytium_user_data_processing() reads the persisted _pt-user-role post meta and passes it directly as the role argument to wp_insert_user(). This makes it possible for unauthenticated attackers to register a new WordPress account with the administrator role and fully take over the site. Exploitation requires submitting a payment through a publicly-exposed [paytium] shortcode form and completing the resulting payment flow, after which the attacker can seize the new administrator account via the standard lost-password flow on their supplied email address.
References
- wordfence.com/threat-intel/vulnerabilities/id/caa1a42a-6bb2-42c8-aae7-fb1c895573a8?source=cve (opens in a new tab)
- plugins.trac.wordpress.org/browser/paytium/tags/5.0.3/includes/user-data-functions.php (opens in a new tab)
- plugins.trac.wordpress.org/browser/paytium/tags/5.0.3/includes/process-payment-functions.php (opens in a new tab)
- plugins.trac.wordpress.org/browser/paytium/tags/5.0.3/includes/process-payment-functions.php (opens in a new tab)
- plugins.trac.wordpress.org/browser/paytium/tags/5.0.3/includes/process-payment-functions.php (opens in a new tab)
- plugins.trac.wordpress.org/browser/paytium/tags/5.0.3/includes/payment-functions.php (opens in a new tab)
- plugins.trac.wordpress.org/changeset/3678569/paytium (opens in a new tab)