JSM Show Post Metadata vulnerabilities
Plugin slug jsm-show-post-meta · 2 known vulnerabilities · latest disclosed 2026-09-21 · WordPress.org page
Every listed vulnerability has a fix. Version 4.9.1 or later is not affected by any of them. If your site runs an older version, update it.
0 of 2 rated high or critical (CVSS 7 or more).
Known vulnerabilities in JSM Show Post Metadata
| Severity | Affected versions | Fixed in | CVE | Published | Details |
|---|---|---|---|---|---|
| Medium 6.4 | <= 4.9.0 | 4.9.1 | CVE-2026-88997 | 2026-09-21 | Advisory |
| Medium 4.3 | <= 4.6.0 | 4.6.1 | CVE-2025-24589 | 2025-01-24 | Advisory |
Check if a site is affected
Enter a site address to see which version of JSM Show Post Metadata and other plugins it runs, and whether they match a known vulnerability.
Questions
Is the JSM Show Post Metadata plugin safe to use?
All 2 known issues are fixed in current versions (4.9.1 or later). Keeping it updated is what matters.
How do I check which version of JSM Show Post Metadata 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.