How severe is CVE-2018-17586?

CVE-2018-17586 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-2018-17586 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-17586?

CVE-2018-17586 affects Wpfastestcache Wp Fastest Cache. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-17586?

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

When was CVE-2018-17586 published?

CVE-2018-17586 was published on 2019-04-15 and last updated on 2026-06-17.

CVE-2018-17586

CVE-2018-17586 is a medium-severity vulnerability in Wpfastestcache Wp Fastest Cache 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: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Wpfastestcache Wp Fastest Cache
Published: 2019-04-15
Last modified: 2026-06-17

Description

The WP Fastest Cache plugin 0.8.8.5 for WordPress has XSS via the rules[0][content] parameter in a wpfc_save_timeout_pages action.

Frequently asked questions

What is CVE-2018-17586?: The WP Fastest Cache plugin 0.8.8.5 for WordPress has XSS via the rules[0][content] parameter in a wpfc_save_timeout_pages action.
How severe is CVE-2018-17586?: CVE-2018-17586 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-2018-17586 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-17586?: CVE-2018-17586 affects Wpfastestcache Wp Fastest Cache. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-17586?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-17586 published?: CVE-2018-17586 was published on 2019-04-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:wpfastestcache:wp_fastest_cache:0.8.8.5:*:*:*:*:wordpress:*:*

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