CVE-2019-20203

Name: CVE-2019-20203
Creator: NVD / NIST
Published: 2020-01-02T14:16:35.987+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 2.10%

Last modified Jun 17, 2026

CVE-2019-20203 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. The Authorized Addresses feature in the Postie plugin 1.9.40 for WordPress allows remote attackers to publish posts by spoofing the From information of an email message.. EPSS estimates a 2.10% chance of exploitation in the next 30 days.

Description

The Authorized Addresses feature in the Postie plugin 1.9.40 for WordPress allows remote attackers to publish posts by spoofing the From information of an email message.

Metrics

CVSS 3.1

5.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

EPSS Probability

2.10%

79.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-290

Affected Software

Vendor	Product	Versions
Postieplugin	Postie	<= 1.9.40

References

https://github.com/V1n1v131r4/Exploiting-Postie-WordPress-Plugin-/blob/master/README.mdExploit, Third Party Advisory
https://postieplugin.com/Product
https://wordpress.org/plugins/postie/#developersRelease Notes, Vendor Advisory
https://wpvulndb.com/vulnerabilities/10002Third Party Advisory
https://github.com/V1n1v131r4/Exploiting-Postie-WordPress-Plugin-/blob/master/README.mdExploit, Third Party Advisory
https://postieplugin.com/Product
https://wordpress.org/plugins/postie/#developersRelease Notes, Vendor Advisory
https://wpvulndb.com/vulnerabilities/10002Third Party Advisory

Timeline

Published: Jan 2, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-20203?

The Authorized Addresses feature in the Postie plugin 1.9.40 for WordPress allows remote attackers to publish posts by spoofing the From information of an email message.

How severe is CVE-2019-20203?

CVE-2019-20203 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 2.10% probability of exploitation in the next 30 days.

How do I fix CVE-2019-20203?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-20203?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST