CVE-2025-27337

WordPress Fontsampler Plugin <= 0.4.14 - CSRF to Reflected Cross Site Scripting (XSS) vulnerability

7.1 High

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in kontur Fontsampler fontsampler allows Reflected XSS.This issue affects Fontsampler: from n/a through <= 0.4.14.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: Low
Integrity: Low
Availability: Low

Exploit likelihood

0.30%Up 0.3 points since Apr 18, 2025

What each source reports

CVE List Score used 7.1

WordPress Fontsampler Plugin <= 0.4.14 - CSRF to Reflected Cross Site Scripting (XSS) vulnerability

Record: CVE-2025-27337
CVSS 3.1: 7.1 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
Weakness: CWE-79
Updated: 2026-11-02

EUVDEUVD-2025-11639 7.1

Record: EUVD-2025-11639
CVSS 3.1: 7.1 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
Updated: 2026-11-02

GitHub AdvisoriesGHSA-6f77-vc9j-7p2g 7.1

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')...

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in kontur Fontsampler allows Reflected XSS. This issue affects Fontsampler: from n/a through 0.4.14.

Record: GHSA-6f77-vc9j-7p2g
CVSS 3.1: 7.1 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
Weakness: CWE-79
Updated: 2026-11-02

NVD 7.1

Record: CVE-2025-27337
CVSS 3.1: 7.1 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
Weakness: CWE-79
Updated: 2026-11-02

Affected products

kontur fontsampler

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-27337 is a high vulnerability (CVSS 7.1) in Kontur Fontsampler, published April 17, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.30%, the 22nd percentile. No source names a fixed version.