title: Qyrr < 0.7 - Authenticated (contributor+) Stored XSS
description: The Qyrr WordPress plugin before 0.7 does not escape the data-uri of the QR Code when outputting it in a src attribute, allowing for Cross-Site Scripting attacks. Furthermore, the data_uri_to_meta AJAX action, available to all authenticated users, only had a CSRF check in place, with the nonce available to users with a role as low as Contributor allowing any user with such role (and above) to set a malicious data-uri in arbitrary QR Code posts, leading to a Stored Cross-Site Scripting issue.
problem types: CWE-79 Cross-Site Scripting (XSS)
affected:
{
vendor: Unknown
product: Qyrr
versions:
status: affected, versionType: semver, version: 0, lessThan: 0.7
defaultStatus: unaffected
collectionURL: https://wordpress.org/plugins
}