How severe is CVE-2018-18461?

CVE-2018-18461 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-18461 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-18461?

CVE-2018-18461 affects Kibokolabs Arigato Autoresponder And Newsletter. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-18461?

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

When was CVE-2018-18461 published?

CVE-2018-18461 was published on 2018-10-18 and last updated on 2026-06-17.

CVE-2018-18461

CVE-2018-18461 is a critical-severity vulnerability in Kibokolabs Arigato Autoresponder And Newsletter with a CVSS 3.x base score of 9.8. 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-94.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 4% (90th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: Kibokolabs Arigato Autoresponder And Newsletter
Published: 2018-10-18
Last modified: 2026-06-17

Description

The Arigato Autoresponder and Newsletter (aka bft-autoresponder) v2.5.1.7 plugin for WordPress allows remote attackers to execute arbitrary code via PHP code in attachments[] data to models/attachment.php.

Frequently asked questions

What is CVE-2018-18461?: The Arigato Autoresponder and Newsletter (aka bft-autoresponder) v2.5.1.7 plugin for WordPress allows remote attackers to execute arbitrary code via PHP code in attachments[] data to models/attachment.php.
How severe is CVE-2018-18461?: CVE-2018-18461 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-18461 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-18461?: CVE-2018-18461 affects Kibokolabs Arigato Autoresponder And Newsletter. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-18461?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2018-18461 published?: CVE-2018-18461 was published on 2018-10-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:kibokolabs:arigato_autoresponder_and_newsletter:2.5.1.7:*:*:*:*:wordpress:*:*

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