CVE-2021-25117

WP Postratings < 1.86.1 - Admin+ Stored Cross-Site Scripting

Severity Score

4.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The WP-PostRatings WordPress plugin before 1.86.1 does not sanitise the postratings_image parameter from its options page (wp-admin/admin.php?page=wp-postratings/postratings-options.php). Even though the page is only accessible to administrators, and protected against CSRF attacks, the issue is still exploitable when the unfiltered_html capability is disabled.

El complemento de WordPress WP-PostRatings anterior a 1.86.1 no sanitiza el parámetro postratings_image de su página de opciones (wp-admin/admin.php?page=wp-postratings/postratings-options.php). Aunque solo los administradores pueden acceder a la página y está protegida contra ataques CSRF, el problema aún se puede explotar cuando la capacidad unfiltered_html está deshabilitada.

The WP-PostRatings plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘postratings_image’ parameter in versions up to, and including, 1.86 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

*Credits: Park Won Seok, WPScan

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-12-24 CVE Published
2021-01-14 CVE Reserved
2024-01-24 EPSS Updated
2024-08-03 CVE Updated
2024-08-03 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-352: Cross-Site Request Forgery (CSRF)

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC
https://wpscan.com/vulnerability/d2d9a789-edae-4ae1-92af-e6132db7efcd	2024-08-03

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Lesterchan Search vendor "Lesterchan"		Wp-postratings Search vendor "Lesterchan" for product "Wp-postratings"				< 1.86.1 Search vendor "Lesterchan" for product "Wp-postratings" and version " < 1.86.1"		wordpress		Affected