How severe is CVE-2017-18564?

CVE-2017-18564 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-2017-18564 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-2017-18564?

CVE-2017-18564 affects Bestwebsoft Sender. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-18564?

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

When was CVE-2017-18564 published?

CVE-2017-18564 was published on 2019-08-21 and last updated on 2026-06-17.

CVE-2017-18564

CVE-2017-18564 is a medium-severity vulnerability in Bestwebsoft Sender 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: Bestwebsoft Sender
Published: 2019-08-21
Last modified: 2026-06-17

Description

The sender plugin before 1.2.1 for WordPress has multiple XSS issues.

Frequently asked questions

What is CVE-2017-18564?: The sender plugin before 1.2.1 for WordPress has multiple XSS issues.
How severe is CVE-2017-18564?: CVE-2017-18564 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-2017-18564 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-2017-18564?: CVE-2017-18564 affects Bestwebsoft Sender. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-18564?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-18564 published?: CVE-2017-18564 was published on 2019-08-21 and last updated on 2026-06-17.

References

https://wordpress.org/plugins/sender/#developers

Affected products (1)

cpe:2.3:a:bestwebsoft:sender:*:*:*:*:*:wordpress:*:*

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