How severe is CVE-2022-2473?

CVE-2022-2473 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2022-2473 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-2473?

CVE-2022-2473 affects Wp-useronline Project Wp-useronline. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-2473?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2022-2473 published?

CVE-2022-2473 was published on 2022-09-06 and last updated on 2026-06-17.

CVE-2022-2473

CVE-2022-2473 is a medium-severity vulnerability in Wp-useronline Project Wp-useronline with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
EPSS exploit prediction: 1% (58th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Wp-useronline Project Wp-useronline
Published: 2022-09-06
Last modified: 2026-06-17

Description

The WP-UserOnline plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘templates[browsingpage][text]' parameter in versions up to, and including, 2.87.6 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers with administrative capabilities and above to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The only affects multi-site installations and installations where unfiltered_html is disabled.

Frequently asked questions

What is CVE-2022-2473?: The WP-UserOnline plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘templates[browsingpage][text]' parameter in versions up to, and including, 2.87.6 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers with administrative capabilities and above to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The only affects multi-site installations and installations where unfiltered_html is disabled.
How severe is CVE-2022-2473?: CVE-2022-2473 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2022-2473 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-2473?: CVE-2022-2473 affects Wp-useronline Project Wp-useronline. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-2473?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-2473 published?: CVE-2022-2473 was published on 2022-09-06 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:wp-useronline_project:wp-useronline:*:*:*:*:*:wordpress:*:*

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