CVE-2023-5057

ActivityPub <= 0.17.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via User Metadata

mediumImproper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

6.4

CVSS Score

6.4

CVSS Score

medium

Severity

1.0.0

Patched in

120d

Time to patch

Description

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.

CVSS Vector Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Low

Confidentiality

Low

Integrity

None

Availability

Technical Details

Affected versions<=0.17.0

PublishedSeptember 25, 2023

Last updatedJanuary 22, 2024

Affected pluginactivitypub

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/76e35dc6-a4d2-4dca-a186-395f0dd954aa?source=api-prod

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