CVE-2022-0503: Multisite Content Copier/Updater < 2.1.2 - 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: 2022-03-14 · updated 2026-06-17
Weakness: CWE-79

Description

The WordPress Multisite Content Copier/Updater WordPress plugin before 2.1.2 does not sanitise and escape the s parameter before outputting it back in an attribute, leading to a Reflected Cross-Site Scripting issue in the network dashboard

Affected products

WordPress Multisite Content Copier/Updater: before 2.1.2 — fixed in 2.1.2

How to fix

Upgrade to a fixed version: WordPress Multisite Content Copier/Updater 2.1.2. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/b6d38e23-3761-4447-a794-1e5077fd953a
https://wpscan.com/vulnerability/b6d38e23-3761-4447-a794-1e5077fd953a

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