CVE-2022-46863

Quick Event Manager <= 9.6.4 - Authenticated(Admin+) Stored Cross-Site Scripting

2023-02-14 00:00

Strategic Overview

Status: Patched in 9.6.5
Affected Plugin: Quick Event Manager
Affected Version: <= 9.6.4
CVSS: 5.5Medium
Weakness type: CWE-692 · Incomplete Denylist to Cross-Site Scripting
CVE: CVE-2022-46863

View all Quick Event Manager vulnerabilities

At a glance

CVE-2022-46863 is a medium-severity Incomplete Denylist to Cross-Site Scripting vulnerability in the Quick Event Manager WordPress plugin, affecting versions <= 9.6.4. It carries a CVSS score of 5.5 (reachable over the network; low attack complexity). Exploitation requires an authenticated account at Admin level or above. The issue is fixed in version 9.6.5; sites on affected versions should update now. Disclosed February 2023, reported by Justiice.

Vulnerability Overview

The Quick Event Manager plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in versions up to, and including, 9.6.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrative-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user.

CWE-692: Incomplete Denylist to Cross-Site Scripting

The product uses a denylist-based protection mechanism to defend against XSS attacks, but the denylist is incomplete, allowing XSS variants to succeed.

Remediation

Update to version 9.6.5, or a newer patched version

How does WordSec protect against this?

The fix is the thing that ends this: Quick Event Manager 9.6.5 closes this, and updating the plugin is the step that ends it.

Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2022-46863 https://www.wordfence.com/threat-intel/vulnerabilities/id/8962c601-2c2c-4b96-b8a4-fdc2ad8a2c08 https://nvd.nist.gov/vuln/detail/CVE-2022-46863

Related records

Other vulnerabilities in Quick Event Manager

CVSS Vector

5.5

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

Base

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

This record contains material that is subject to copyright

CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.

https://www.cve.org/Legal/TermsOfUse

Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy.

https://www.wordfence.com/wordfence-intelligence-terms-and-conditions/