CVE-2026-16253
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductTotal Upkeep
PublishedAug 12, 2026
First seenAug 12, 2026
Weakness typeCWE-200Sensitive information exposure
How to fix
Update
- Total Upkeep1.17.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Total Upkeep | v < 1.17.3 | 1.17.3 |
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