CVE-2025-23490

WordPress Browser-Update-Notify plugin <= 0.2.1 - Reflected Cross Site Scripting (XSS) vulnerability

7.1 High

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Michael Stursberg Browser-Update-Notify browser-update-notify allows Reflected XSS.This issue affects Browser-Update-Notify: from n/a through <= 0.2.1.

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

0.28%Up 0.2 points since Mar 4, 2025

What each source reports

CVE List Score used 7.1

WordPress Browser-Update-Notify plugin <= 0.2.1 - Reflected Cross Site Scripting (XSS) vulnerability

Record: CVE-2025-23490
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-2025-5744 7.1

Record: EUVD-2025-5744
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-8wxr-c457-gcq8 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 NotFound Browser-Update-Notify allows Reflected XSS. This issue affects Browser-Update-Notify: from n/a through 0.2.1.

Record: GHSA-8wxr-c457-gcq8
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-2025-23490
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

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-2025-23490 is a high vulnerability (CVSS 7.1) in Michael Stursberg Browser-update-notify, published March 3, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.28%, the 20th percentile. No source names a fixed version.