CVE-2026-11354The 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.
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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.
- CVSS
- 5.3 MEDIUM (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- Weakness (CWE)
- CWE-862
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Deferred
- Record last updated
- Jul 24, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
No affected products are listed yet.
References
- https://plugins.trac.wordpress.org/browser/participants-database/tags/2.7.8.3/classes/PDb_Shortcode.php#L1267
- 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#L1671
- https://plugins.trac.wordpress.org/browser/participants-database/tags/2.7.8.3/participants-database.php#L2437
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3606851%40participants-database&new=3606851%40participants-database
- https://www.wordfence.com/threat-intel/vulnerabilities/id/ff1b8d09-974a-4735-8b63-15084412090d?source=cve
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.