UpdraftPlus <= 1.23.3 - Cross-Site Request Forgery to Cross-Site Scripting via action_authenticate_storage
The UpdraftPlus plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.23.3. This is due to missing or incorrect nonce validation on the action_authenticate_storage function. This makes it possible for unauthenticated attackers to inject JavaScript into a parameter in the authentication process via a forged request which will execute in their browser at another part of the process, granted they can trick a site administrator into performing multiple actions including re-authenticating a connection to storage.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| WordPress plugin | UpdraftPlus: WP Backup & Migration Plugin | <= 1.23.3 | 1.23.4 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N- Weakness (CWE)
CWE-352- Platform
- WordPress
- Package
UpdraftPlus: WP Backup & Migration Plugin- Disclosed
- 18.05.2023
- Updated
- 11.10.2026 10:22
Sources and licenses
Wordfence Intelligence - 597f06ac-f9c7-4dcb-bb72-15ed7e9d8ac6 - Wordfence Intelligence
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Copyright 2012-2026 Defiant Inc.
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Vulnerability history: UpdraftPlus: WP Backup & Migration Plugin
All published vulnerabilities of this package (WordPress plugin), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 19
- First → latest
- 02.2015 09.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 2
- High 3
- Medium 14
Disclosures per year
- 2017: 1
- 2018: 0
- 2019: 0
- 2020: 1
- 2021: 4
- 2022: 2
- 2023: 4
- 2024: 0
- 2025: 2
- 2026: 3
earlier: 2
-
UpdraftPlus <= 1.23.3 - Cross-Site Request Forgery to Cross-Site Scripting via action_authenticate_storage this entry
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