Missing authorization in Roland Barker, xnau webdesign Participants Database
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-862.
Summary
The Participants Database plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 2.7.8.3 via the 'id' parameter. This makes it possible for unauthenticated attackers to overwrite arbitrary participant records by numeric ID and redirect the private_id-bearing record-access link to an attacker-controlled email address, granting full read and edit access to the victim's stored personally identifiable information including names, email addresses, phone numbers, and any other fields collected in the participant database. An attacker can harvest a valid nonce with a plain unauthenticated GET request to any page rendering the public signup or record form, then POST action=update with an arbitrary id value to overwrite any record; chaining a subsequent action=retrieve then delivers the private-access link to the attacker-controlled mailbox.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Roland Barker, xnau webdesign | Participants Database | up to 2.7.8.3 | — | No fix listed | CNA |
- Participants Database VendorRoland Barker, xnau webdesign Affected up to 2.7.8.3 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-11354
- 2026-10-03 Alias added: GHSA-jjqh-m423-q994
References
Other 6
- https://www.wordfence.com/threat-intel/vulnerabilities/id/ff1b8d09-974a-4735-8b63-15084412090d?source=cve
- https://plugins.trac.wordpress.org/browser/participants-database/tags/2.7.8.3/classes/PDb_submission/main_query/update_query.php#L57
- https://plugins.trac.wordpress.org/browser/participants-database/tags/2.7.8.3/participants-database.php#L2437
- https://plugins.trac.wordpress.org/browser/participants-database/tags/2.7.8.3/participants-database.php#L1671
- https://plugins.trac.wordpress.org/browser/participants-database/tags/2.7.8.3/classes/PDb_Shortcode.php#L1267
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3606851%40participants-database&new=3606851%40participants-database
More Roland Barker, xnau webdesign vulnerabilities
- TI-2024-28812 WordPress Participants Database plugin <= 2.5.9.2 - PHP Object Injection vulnerability CVSS 3.1CRITICAL 9.8
- TI-2014-03230 SQL injection vulnerability in the Export CSV page in the Participants Database plugin… CVSS 2.0HIGH 7.5
- TI-2023-14941 WordPress Participants Database Plugin <= 2.4.9 is vulnerable to Cross Site Request Forgery (CSRF) CVSS 3.1HIGH 8.8
- TI-2023-26581 WordPress Participants Database Plugin <= 2.5.5 is vulnerable to Broken Access Control CVSS 3.1HIGH 8.8
- TI-2020-06892 participants-database.php in the Participants Database plugin 1.9.5.5 and previous… CVSS 3.1HIGH 7.5
- TI-2017-10289 The Participants Database plugin before 1.7.5.10 for WordPress has XSS. CVSS 3.0MEDIUM 6.1
Sources
- CVE-2026-11354 · CVE Program
- CVE-2026-11354 · NVD
- FIRST EPSS
- GHSA-jjqh-m423-q994 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences