ActivityPub <= 0.17.0 - Authenticated (Subscriber+) Insecure Direct Object Reference to Sensitive Post Title Exposure

2023-09-25 00:00

Erwan LR

Strategic Overview

Status

Patched in 1.0.0

Affected PluginActivityPub

Affected Version<= 0.17.0

CVSS4.3Medium

CVECVE-2023-3706

View all ActivityPub vulnerabilities

Vulnerability Overview

The ActivityPub plugin for WordPress is vulnerable to Insecure Direct Object Reference in versions up to, and including, 0.17.0 due to missing validation on a user controlled key. This can allow authenticated attackers, with subscriber-level permissions and above, to expose potentially sensitive post titles (e.g., draft and private post titles).

Technical Analysis

REMEDIATION: Update to version 1.0.0, or a newer patched version --- IDENTIFIER: CWE-639 (Authorization Bypass Through User-Controlled Key) The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

External References

https://www.cve.org/CVERecord?id=CVE-2023-3706 https://www.wordfence.com/threat-intel/vulnerabilities/id/d1b92249-bc18-4939-aefa-286667f6c003

CVSS Vector

4.3

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityLow
IntegrityNone
AvailabilityNone

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