CVE-2021-25089: UpdraftPlus < 1.16.69 - Reflected Cross-Site Scripting

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2022-02-01 · updated 2026-06-17
Weakness: CWE-79

Description

The UpdraftPlus WordPress Backup Plugin WordPress plugin before 1.16.69 does not sanitise and escape the updraft_restore parameter before outputting it back in the Restore page, leading to a Reflected Cross-Site Scripting

Affected products

UpdraftPlus WordPress Backup Plugin: before 1.16.69 — fixed in 1.16.69

How to fix

Upgrade to a fixed version: UpdraftPlus WordPress Backup Plugin 1.16.69. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/5adb977e-f7bf-4d36-b625-87bc23d379c8
https://wpscan.com/vulnerability/5adb977e-f7bf-4d36-b625-87bc23d379c8

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