Skip to main content
CRITICAL

CVE-2026-1357

Migration, Backup, Staging <= 0.9.123 - Unauthenticated Arbitrary File Upload

CVSS v3

9.8

CRITICAL

EPSS Score

22.4 %

exploit probability

CISA KEV

No

known exploited

Exploitation

none

SSVC status

Description

The Migration, Backup, Staging – WPvivid Backup & Migration plugin for WordPress is vulnerable to Unauthenticated Arbitrary File Upload in versions up to and including 0.9.123. This is due to improper error handling in the RSA decryption process combined with a lack of path sanitization when writing uploaded files. When the plugin fails to decrypt a session key using openssl_private_decrypt(), it does not terminate execution and instead passes the boolean false value to the phpseclib library's A

Technical details

CVSS v3 Vector
3.1
Published
2026-02-11
Last Modified
2026-04-14

Frequently asked questions

What is CVE-2026-1357?

The Migration, Backup, Staging – WPvivid Backup & Migration plugin for WordPress is vulnerable to Unauthenticated Arbitrary File Upload in versions up to and including 0.9.123. This is due to improper error handling in the RSA decryption process combined with a lack of path sanitization when writing uploaded files. When the plugin fails to decrypt a session key using openssl_private_decrypt(), it does not terminate execution and instead passes the boolean false value to the phpseclib library's A

Is CVE-2026-1357 actively exploited?

Active exploitation of CVE-2026-1357 has not been confirmed. The EPSS score is 22.4%, indicating the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-1357?

CVE-2026-1357 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string 3.1.

Is CVE-2026-1357 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.

Check an IPSearch CVEsSIEM & TIP integrations

No credit card required · 500 free checks/month · Free API key

Other 2026 vulnerabilities worth triaging

Ranked by exploit probability (EPSS).

Back to CVE Database