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Vaibhav Nitin GaikwadWPVDB-ID:BF476A3E-05BA-4B54-8A65-3D261AD5337B

HistoryJun 02, 2022 - 12:00 a.m.

Mihdan: No External Links < 5.0.2 - Admin+ Stored Cross-Site Scripting

2022-06-0200:00:00

Vaibhav Nitin Gaikwad

wpscan.com

4.8 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

3.5 Low

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:S/C:N/I:P/A:N

JSON

The plugin does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup)

PoC

Put the following payload in any of the text fields in the Settings > Links of the plugin (/wp-admin/admin.php?page=mihdan-no-external-links&tab;=links): v < 4.8.0 - "> v < 5.0.2 - " style=animation-name:rotation onanimationstart=alert(/XSS/)//

CPENameOperatorVersion
mihdan-no-external-linkslt5.0.2

CPE	Name	Operator	Version
	mihdan-no-external-links	lt	5.0.2

4.8 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

3.5 Low

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:S/C:N/I:P/A:N

JSON

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