WP HTML Author Bio <= 1.2.0 - Authenticated (Author+) Stored Cross-Site Scripting

2021-09-21 00:00

Veshraj Ghimire

Strategic Overview

Status

Unpatched

Affected PluginWP HTML Author Bio

Affected Version<= 1.2.0

CVSS5.4Medium

CVECVE-2021-24545

View all WP HTML Author Bio vulnerabilities

Vulnerability Overview

The WP HTML Author Bio WordPress plugin through 1.2.0 does not sanitise the HTML allowed in the Bio of users, allowing them to use malicious JavaScript code, which will be executed when anyone visit a post in the frontend made by such user. As a result, user with a role as low as author could perform Cross-Site Scripting attacks against users, which could potentially lead to privilege escalation when an admin view the related post/s.

Technical Analysis

REMEDIATION: No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement. --- 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-2021-24545 https://www.wordfence.com/threat-intel/vulnerabilities/id/11b640a9-a031-4061-a4d2-93decd634acf

CVSS Vector

5.4

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionRequired
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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