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

2021-07-26 00:00

dc11

Strategic Overview

Status

Patched in 0.8

Affected PluginQyrr – simply and modern QR-Code creation

Affected Version<= 0.7

CVSS6.4Medium

CVECVE-2021-24559

View all Qyrr – simply and modern QR-Code creation vulnerabilities

Vulnerability Overview

The Qyrr – simply and modern QR-Code creation plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘data-uri’ parameter in versions up to, and including, 0.7 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Technical Analysis

REMEDIATION: Update to version 0.8, or a newer patched version --- IDENTIFIER: 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.

External References

https://www.cve.org/CVERecord?id=CVE-2021-24559 https://www.wordfence.com/threat-intel/vulnerabilities/id/b4a82562-1368-4071-bedf-8a84d82e88ef

CVSS Vector

6.4

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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