5.4

CVE-2021-24559

Exploit

Qyrr – simply and modern QR-Code creation <= 0.7 - Cross-Site Scripting

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.
Mögliche Gegenmaßnahme
Qyrr – simply and modern QR-Code creation: Update to version 0.8, or a newer patched version
Weitere Schwachstelleninformationen
SystemWordPress Plugin
≫
Produkt Qyrr – simply and modern QR-Code creation
Version *-0.7
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Patrickposner ≫ Qyrr SwPlatformwordpress Version < 0.7
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.16% 0.368
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.4 2.3 2.7
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.