How severe is CVE-2015-8354?

CVE-2015-8354 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2015-8354 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-8354?

CVE-2015-8354 affects Ultimatemember Ultimate Member. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-8354?

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

When was CVE-2015-8354 published?

CVE-2015-8354 was published on 2017-09-11 and last updated on 2026-06-17.

CVE-2015-8354

CVE-2015-8354 is a medium-severity vulnerability in Ultimatemember Ultimate Member with a CVSS 3.x base score of 6.1. 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 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Ultimatemember Ultimate Member
Published: 2017-09-11
Last modified: 2026-06-17

Description

Cross-site scripting (XSS) vulnerability in the Ultimate Member WordPress plugin before 1.3.29 for WordPress allows remote attackers to inject arbitrary web script or HTML via the _refer parameter to wp-admin/users.php.

Frequently asked questions

What is CVE-2015-8354?: Cross-site scripting (XSS) vulnerability in the Ultimate Member WordPress plugin before 1.3.29 for WordPress allows remote attackers to inject arbitrary web script or HTML via the _refer parameter to wp-admin/users.php.
How severe is CVE-2015-8354?: CVE-2015-8354 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2015-8354 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-8354?: CVE-2015-8354 affects Ultimatemember Ultimate Member. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-8354?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-8354 published?: CVE-2015-8354 was published on 2017-09-11 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:ultimatemember:ultimate_member:*:*:*:*:*:wordpress:*:*

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