HomeWordPress vulnerabilitiesMaintenance
Maintenance vulnerabilities
Maintenance has 1 known vulnerability in this database. The most recent published record is dated 23 Aug 2021.
- Known vulnerabilities
- 1
- Active installs
- 1m+
- Latest version
- 4.32
- Last updated
- 16 Aug 2026
- Most recent
- 23 Aug 2021
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-2021-24533 | Medium 4.8 | Before 4.03 | Fixed in 4.03 | 23 Aug 2021 |
Read the published descriptions
- CVE-2021-24533, 23 Aug 2021
- The Maintenance WordPress plugin before 4.03 does not sanitise or escape some of its settings, allowing high privilege users such as admin to se Cross-Site Scripting payload in them (even when the unfiltered_html capability is disallowed), which will be triggered in the frontend CVE record
What to do if you run Maintenance
If you run Maintenance, 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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