CVE-2026-8622 | The Image Sizes on Demand plugin for WordPress is vulnerable… | CVSS 6.1 MEDIUM

Description

The Image Sizes on Demand plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via PHP_SELF Server Variable in all versions up to, and including, 1.3 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. The injected payload only executes in the context of an administrator, as the settings page requires the manage_options capability to render.

Metadata

CVE ID: CVE-2026-8622
State: PUBLISHED
Assigner: Wordfence
Reserved: 2026-05-14 18:40 UTC
Published: 2026-06-24 05:33 UTC
Last updated: 2026-06-24 05:33 UTC
Primary CWE: CWE-79
CWE-79 Improper Neutralization of Input During Web Page Gene…
Vendor / Product: pixelwelt / Image Sizes on Demand
Sources: cve.org · NVD

Severity & Metrics

6.1 MEDIUM CVSS 3.1

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

Affected products (1)

Vendor	Product	Platform	Versions
pixelwelt	Image Sizes on Demand	—	0 ≤ 1.3

Weakness (CWE)

CWE	Source	Description
CWE-79	cna	CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSS scores (1)

Score	Severity	Version	Source	Vector
6.1	MEDIUM	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References (2)