CVE-2023-5057

ActivityPub for WordPress < 1.0.0 - Contributor+ Stored XSS

Severity Score

5.4

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The ActivityPub WordPress plugin before 1.0.0 does not escape user metadata before outputting them in mentions, which could allow users with a role of Contributor and above to perform Stored XSS attacks

El complemento ActivityPub de WordPress anterior a 1.0.0 no escapa a los metadatos del usuario antes de mostrarlos en menciones, lo que podría permitir a los usuarios con un rol de Colaborador y superior realizar ataques XSS almacenados.

The ActivityPub plugin for WordPress is vulnerable to Stored Cross-Site Scripting via user metadata in versions up to, and including, 0.17.0 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.

*Credits: Ben Bidner, WPScan

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

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

2023-09-18 CVE Reserved
2023-09-25 CVE Published
2024-08-02 CVE Updated
2024-08-02 First Exploit
2024-10-22 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC
https://wpscan.com/vulnerability/58a63507-f0fd-46f1-a80c-6b1c41dddcf5	2024-08-02

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
Automattic Search vendor "Automattic"		Activitypub Search vendor "Automattic" for product "Activitypub"				< 1.0.0 Search vendor "Automattic" for product "Activitypub" and version " < 1.0.0"		wordpress		Affected