Postie vulnerabilities
Plugin slug postie · 6 known vulnerabilities · latest disclosed 2026-10-27 · WordPress.org page
Every listed vulnerability has a fix. Version 1.9.88 or later is not affected by any of them. If your site runs an older version, update it.
1 of 6 rated high or critical (CVSS 7 or more).
Known vulnerabilities in Postie
| Severity | Affected versions | Fixed in | CVE | Published | Details |
|---|---|---|---|---|---|
| Medium 5.4 | <= 1.9.87 | 1.9.88 | CVE-2026-100175 | 2026-10-27 | Advisory |
| Medium 6.4 | <= 1.9.73 | 1.9.74 | CVE-2025-63020 | 2025-12-31 | Advisory |
| Medium 4.4 | <= 1.9.70 | 1.9.71 | CVE-2024-5200 | 2025-09-08 | Advisory |
| Medium 5.3 | < 1.9.41 | 1.9.41 | CVE-2019-20203 | 2020-01-02 | Advisory |
| Medium 5.4 | < 1.9.41 | 1.9.41 | CVE-2019-20204 | 2020-01-02 | Advisory |
| High 7.2 | <= 1.4.9 | 1.4.10 | CVE-2012-2580 | 2012-08-08 | Advisory |
Check if a site is affected
Enter a site address to see which version of Postie and other plugins it runs, and whether they match a known vulnerability.
Questions
Is the Postie plugin safe to use?
All 6 known issues are fixed in current versions (1.9.88 or later). Keeping it updated is what matters.
How do I check which version of Postie my site runs?
In WordPress go to Plugins > Installed Plugins. From the outside, the free PluginPeek scan below reads the version from the site's public files.
How do I fix a vulnerable plugin?
Make a full backup, then update it from Dashboard > Updates and check the site afterwards. If you would rather not, we can do it for a fixed $99, paid after you have checked the site.