WordPress Core < 5.5.2 - Reflected Cross-Site Scripting via Global Variables

2020-10-29 00:00

Marc-Alexandre Montpas

Strategic Overview

Status

Patched in 3.7.35

Affected CoreWordPress 5.5

Affected Version3.7 – 5.5.1 · 20 branches

CVSS6.1Medium

CVECVE-2020-28034

View all WordPress 5.5 vulnerabilities

Vulnerability Overview

WordPress before 5.5.2 allows XSS associated with global variables.

Technical Analysis

REMEDIATION: Update to one of the following versions, or a newer patched version: 3.7.35, 3.8.35, 3.9.33, 4.0.32, 4.1.32, 4.2.29, 4.3.25, 4.4.24, 4.5.23, 4.6.20, 4.7.19, 4.8.15, 4.9.16, 5.0.11, 5.1.7, 5.2.8, 5.3.5, 5.4.3, 5.5.2 --- 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-2020-28034 https://www.wordfence.com/threat-intel/vulnerabilities/id/4290ee15-0362-48c5-a570-4a1b6719a948

CVSS Vector

6.1

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

Base

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

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