The Total Upkeep WordPress plugin before version 1.17.3 does not adequately protect the secret that authorizes its backup-restore functionality and exposes it to unauthenticated users. This allows attackers to disclose sensitive backup information and to force a full site restore that overwrites the live site's files and database. The flaw stems from the predictable or publicly discoverable cron_secret and a lack of authentication enforcement for the restore operation, qualifying it as a data‑exposure and authorization bypass weakness.

The affected product is the Total Upkeep plugin used within WordPress installations. Any site running Total Upkeep prior to version 1.17.3 is vulnerable. The plugin is listed as Unknown:Total Upkeep in CNA reports and there are no further vendor or product details available.

The CVSS score is 7.5, rating it high, and the vulnerability permits unauthenticated access to sensitive backup data and allows arbitrary site restoration, which constitute high‑impact consequences. The EPSS score of < 1% indicates a very low but non‑zero exploitation probability. The likely attack vector is through a direct HTTP request to the plugin’s restore endpoint, requiring no user credentials. The issue is not listed in the CISA KEV catalog. The predictable cron_secret makes the attack trivial once the endpoint is discovered, suggesting that if the secret is exposed, the exploit can be carried out with minimal effort.