WordPress Participants Database Plugin <= 2.5.5 is vulnerable to Broken Access Control

published 2023-12-18 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-52784

cvss: 4.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 16%
public exploits: 0; none known

Missing Authorization, Cross-Site Request Forgery (CSRF) vulnerability in Roland Barker, xnau webdesign Participants Database allows Accessing Functionality Not Properly Constrained by ACLs, Cross Site Request Forgery.This issue affects Participants Database: from n/a through 2.5.5.

Patch / fix

fixed in 1

Roland Barker, xnau webdesign Participants Database 2.5.6

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 23 mo ago (2024-11-12)

Exploit prediction

0.25% chance of exploitation in the next 30 days, higher than 16% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	4.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
NVD	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

Roland Barker, xnau webdesign Participants Database

Classification

Weakness

CWE-862 Missing Authorization
CWE-352 Cross-Site Request Forgery

Technology feeds

WordPress rss critical rss

References

patchstack.com /database/vulnerability/participants-database/wordpress-participants-database-plugin-2-5-5-broken-access-contr
third-party-advisory

Sources

CVE List CVE-2023-48751
NVD CVE-2023-48751

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary