WP SVG Images <= 3.3 - Authenticated (author+) Stored Cross-Site Scripting via SVG

2021-06-14 00:00

Rasi

Strategic Overview

Status

Patched in 3.4

Affected PluginWP SVG Images

Affected Version<= 3.3

CVSS6.4Medium

CVECVE-2021-24386

View all WP SVG Images vulnerabilities

Vulnerability Overview

The WP SVG images WordPress plugin before 3.4 did not sanitise the SVG files uploaded, which could allow low privilege users such as author+ to upload a malicious SVG and then perform XSS attacks by inducing another user to access the file directly. In v3.4, the plugin restricted such upload to editors and admin, with an option to also allow author to do so. The description of the plugin has also been updated with a security warning as upload of such content is intended.

Technical Analysis

REMEDIATION: Update to version 3.4, 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-2021-24386 https://www.wordfence.com/threat-intel/vulnerabilities/id/b72a26dd-0d20-462e-bb71-ed83eae6766e

CVSS Vector

6.4

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

Base

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

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