Block Referer Spam <= 1.1.9.4 - Authenticated (Administrator+) Stored Cross-Site Scripting

2023-05-09 00:00

Taihei Shimamine

Strategic Overview

Status

Patched in 1.1.9.5

Affected PluginBlock Referer Spam

Affected Version<= 1.1.9.4

CVSS3.3Low

CVECVE-2023-32497

View all Block Referer Spam vulnerabilities

Vulnerability Overview

The Block Referer Spam plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in versions up to, and including, 1.1.9.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only impacts multi-site installations and installations where unfiltered_html has been disabled.

Technical Analysis

REMEDIATION: Update to version 1.1.9.5, or a newer patched version --- IDENTIFIER: CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

External References

https://www.cve.org/CVERecord?id=CVE-2023-32497 https://www.wordfence.com/threat-intel/vulnerabilities/id/fd97fba9-513b-46e1-9613-2f64c4272f34

CVSS Vector

3.3

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

Base

Attack VectorNetwork
Attack ComplexityHigh
Privileges RequiredHigh
User InteractionNone
ScopeUnchanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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