CVE-2026-16253 | BDVDB-2026-358208 Detail

Total Upkeep

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.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact none, availability impact none. Attack vector: network.

Weaknesses#

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

References#

https://wpscan.com/vulnerability/97abf25a-48d4-4dfa-a7a3-de88455be7eb/

Exploit#

https://wpscan.com/vulnerability/97abf25a-48d4-4dfa-a7a3-de88455be7eb/

History#

Version 12026-08-12Record published in the CVE List.
Version 22026-09-03Most recent update recorded in the CVE List.

Published

Published: 2026-08-12
Last modified: 2026-09-03

Vendor information

Vendor: Not stated
Product: Total Upkeep

Score

7.5 High

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 38.0.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Information Disclosure

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
< 1.17.3
Fixed
1.17.3

Scoring System

CVSS v4.0

Not available

CVSS v3.1

7.5 High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	None
User Interaction	None
Scope	Unchanged
Confidentiality	High
Integrity	None
Availability	None

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).