What’s Vulnerable › Vulnerabilities
CVE-2026-16253: Total Upkeep < 1.17.3 - Unauthenticated Sensitive Data Disclosure and Forced Site Restore via Predictable cron_secret
- Severity: high (CVSS 7.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-08-12 · updated 2026-09-03
- Weakness: CWE-200
Description
The Total Upkeep WordPress plugin before 1.17.3 does not adequately protect the secret that authorizes its backup-restore functionality and exposes it to unauthenticated users, allowing them to disclose sensitive backup information and to force a full site restore that overwrites the live site's files and database. This is an incomplete fix of CVE-2020-36848, as the protection added at the time never took effect on distributed copies of the plugin.
Affected products
- Total Upkeep: before 1.17.3 — fixed in 1.17.3
How to fix
Upgrade to a fixed version: Total Upkeep 1.17.3. Check the vendor advisory for mitigations.
References
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