How severe is CVE-2018-20853?

CVE-2018-20853 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2018-20853 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-20853?

CVE-2018-20853 affects Mailpoet Mailpoet Newsletters. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-20853?

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

When was CVE-2018-20853 published?

CVE-2018-20853 was published on 2019-11-06 and last updated on 2026-06-17.

CVE-2018-20853

CVE-2018-20853 is a medium-severity vulnerability in Mailpoet Mailpoet Newsletters with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Mailpoet Mailpoet Newsletters
Published: 2019-11-06
Last modified: 2026-06-17

Description

An issue was discovered in the MailPoet Newsletters (aka wysija-newsletters) plugin before 2.8.2 for WordPress. The plugin is vulnerable to SPAM attacks.

Frequently asked questions

What is CVE-2018-20853?: An issue was discovered in the MailPoet Newsletters (aka wysija-newsletters) plugin before 2.8.2 for WordPress. The plugin is vulnerable to SPAM attacks.
How severe is CVE-2018-20853?: CVE-2018-20853 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2018-20853 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-20853?: CVE-2018-20853 affects Mailpoet Mailpoet Newsletters. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-20853?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-20853 published?: CVE-2018-20853 was published on 2019-11-06 and last updated on 2026-06-17.

References

https://wordpress.org/plugins/wysija-newsletters/#developers

Affected products (1)

cpe:2.3:a:mailpoet:mailpoet_newsletters:*:*:*:*:*:wordpress:*:*

More vulnerabilities in Mailpoet Mailpoet Newsletters

CVE-2014-4726 — High (CVSS 7.5): Unspecified vulnerability in the MailPoet Newsletters (wysija-newsletters) plugin before 2.6.8 for WordPress has…
CVE-2014-4725 — High (CVSS 7.5): The MailPoet Newsletters (wysija-newsletters) plugin before 2.6.7 for WordPress allows remote attackers to bypass…
CVE-2014-3907 — Medium (CVSS 6.8): Cross-site request forgery (CSRF) vulnerability in the MailPoet Newsletters (wysija-newsletters) plugin before 2.6.11…

All CVEs affecting Mailpoet Mailpoet Newsletters →