SVG Support <= 2.3.19 Admin+ Cross-Site Scripting

2022-01-03 00:00

Shivam Rai

Strategic Overview

Status

Patched in 2.3.20

Affected PluginSVG Support

Affected Version<= 2.3.19

CVSS5.5Medium

CVECVE-2021-24686

View all SVG Support vulnerabilities

Vulnerability Overview

The SVG Support WordPress plugin before 2.3.20 does not escape the "CSS Class to target" setting before outputting it in an attribute, which could allow high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed.

Technical Analysis

REMEDIATION: Update to version 2.3.20, 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-2021-24686 https://www.wordfence.com/threat-intel/vulnerabilities/id/9e9fcaf5-d531-4b14-b8b1-d8090243cf0c

CVSS Vector

5.5

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

Base

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

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