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.
History

Fri, 20 Jun 2025 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: WPScan

Published:

Updated: 2025-06-20T16:54:49.993Z

Reserved: 2021-01-14T15:03:46.768Z

Link: CVE-2021-24559

cve-icon Vulnrichment

Updated: 2024-08-03T19:35:20.264Z

cve-icon NVD

Status : Modified

Published: 2024-01-16T16:15:08.953

Modified: 2025-06-20T17:15:27.930

Link: CVE-2021-24559

cve-icon Redhat

No data.