How severe is CVE-2018-0588?

CVE-2018-0588 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2018-0588 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-0588?

CVE-2018-0588 affects Ultimatemember User Profile & Membership. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-0588?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-0588 published?

CVE-2018-0588 was published on 2018-05-14 and last updated on 2026-06-17.

CVE-2018-0588

CVE-2018-0588 is a high-severity vulnerability in Ultimatemember User Profile & Membership with a CVSS 3.x base score of 7.5. 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-22.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 6.4
EPSS exploit prediction: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Ultimatemember User Profile & Membership
Published: 2018-05-14
Last modified: 2026-06-17

Description

Directory traversal vulnerability in the AJAX function of Ultimate Member plugin prior to version 2.0.4 for WordPress allows remote attackers to read arbitrary files via unspecified vectors.

Frequently asked questions

What is CVE-2018-0588?: Directory traversal vulnerability in the AJAX function of Ultimate Member plugin prior to version 2.0.4 for WordPress allows remote attackers to read arbitrary files via unspecified vectors.
How severe is CVE-2018-0588?: CVE-2018-0588 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2018-0588 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-0588?: CVE-2018-0588 affects Ultimatemember User Profile & Membership. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-0588?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-0588 published?: CVE-2018-0588 was published on 2018-05-14 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:ultimatemember:user_profile_\&_membership:*:*:*:*:*:wordpress:*:*

More vulnerabilities in Ultimatemember User Profile & Membership

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CVE-2018-0586 — Medium (CVSS 4.3): Directory traversal vulnerability in the shortcodes function of Ultimate Member plugin prior to version 2.0.4 for…

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