Gutentools WordPress Plugin CVE-2026-1395

EUVD-2026-24716 MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2026-04-22 Wordfence

GHSA-gw9v-4w4q-22c9

WordPress XSS

6.4

CVSS 3.1

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Apr 22, 2026 - 13:09 vuln.today

DescriptionNVD

The Gutentools plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Post Slider block's block_id attribute in all versions up to, and including, 1.1.3. This is due to insufficient input sanitization and output escaping combined with a custom unescaping routine that reintroduces dangerous characters. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

AnalysisAI

Stored Cross-Site Scripting in the Gutentools WordPress plugin (versions up to 1.1.3) allows authenticated attackers with Contributor-level access to inject arbitrary JavaScript into pages via the Post Slider block's block_id attribute. The vulnerability exploits insufficient input sanitization combined with a custom unescaping routine that reintroduces dangerous characters, enabling persistent payload execution whenever users access injected pages. …

Analysis

Detailed AI-generated intelligence summary covering attack vector, impact assessment, affected versions, remediation steps, and indicators of compromise.

POChttps://••••••••••.com/exploit

PATCHhttps://••••••••••.com/patch

ADVISORYhttps://••••••••••.com/advisory

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CVE-2026-1395 vulnerability details – vuln.today

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