Known vulnerabilities in WP-UserOnline

Enable you to display how many users are online on your WordPress site with detailed statistics.

4Reported vulnerabilities

7.2Highest CVSS score

4.0.0Latest version

10,000+Active installs

What to do now

Update WP-UserOnline to 2.88.3 or later. 4 of these have a fixed version available. Updating resolves them.

Plugin last updated: August 10, 2026 / Tested up to WordPress: 7.0.4 / View on wordpress.org

Reported vulnerabilities

Ordered by how urgently they need attention — whether a vulnerability is actually being exploited, and how likely exploitation is, rather than CVSS severity alone.

CVE	Severity	Exploit probability next 30 days	Affected versions	Fixed in	Published
CVE-2022-2941	Medium 4.8	7.3%	Before 2.88.1	`2.88.1`	September 6, 2022
CVE-2023-5560	Medium 6.1	0.5%	Before 2.88.3	`2.88.3`	November 27, 2023
CVE-2022-2473	Medium 4.8	1.4%	2.87.6 and earlier	`2.88.0`	September 6, 2022
WF-c79587d8-56a9-4c1c-99dc-bc66194ffe52	High 7.2	—	2.62 and earlier	`2.70`	July 1, 2010

Sources: vulnerability records from NVD, exploitation from CISA KEV, exploit probability from EPSS. Affected versions come from CPE ranges or from the reporting CNA.