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JCH Optimize vulnerabilities
JCH Optimize has 2 known vulnerabilities in this database. The most recent published record is dated 5 Sep 2026.
- Known vulnerabilities
- 2
- Active installs
- 4,000+
- Latest version
- 6.0.2
- Last updated
- 23 Aug 2026
- Most recent
- 5 Sep 2026
Find it in your WordPress dashboard under Plugins. Severity is based on the CVSS score published with the CVE where one is available.
| Vulnerability | Severity | Affected | Fix | Published |
|---|---|---|---|---|
| Cross-site scripting (XSS) CVE-2026-84934 | High 8.0 | Before 6.0.1 | Fixed in 6.0.1 | 5 Sep 2026 |
| Path traversal CVE-2025-15693 | Low 2.7 | Before 5.0.1 | Fixed in 5.0.1 | 5 Sep 2026 |
Read the published descriptions
- CVE-2026-84934, 5 Sep 2026
- The JCH Optimize WordPress plugin before 6.0.1 does not perform a capability check on one of its authenticated AJAX actions and lets the request choose which internal action runs, allowing any authenticated users such as Subscribers to import arbitrary JCH Optimize WordPress plugin before 6.0.1 settings and store a script that executes in the browser of any visitor or administrator viewing the site. CVE record
- CVE-2025-15693, 5 Sep 2026
- The JCH Optimize WordPress plugin before 5.0.1 does not properly restrict a directory path provided to one of its administrative image-browsing features to within the site, allowing high-privilege users, administrators on single-site and sub-site administrators on multisite, to enumerate directories and file names outside the web root. CVE record
What to do if you run JCH Optimize
If you run JCH Optimize, open WordPress and check the installed version in Plugins. Compare it with the affected versions in the vulnerability record. If a fixed version is available, take a current backup and update to that version or the latest supported release.
If no fixed version exists, consider disabling and removing the plugin or replacing it with a maintained alternative. After dealing with the affected software, check administrator users, unexpected file changes, redirects, unfamiliar pages and security logs for signs that the site may already have been altered.
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