CVE-2025-26589

WordPress IE CSS3 Support Plugin <= 2.0.1 - Reflected Cross Site Scripting (XSS) vulnerability

7.1 High

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Cristopher Dino IE CSS3 Support ie-css3-support allows Reflected XSS.This issue affects IE CSS3 Support: from n/a through <= 2.0.1.

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

0.32%Up 0.3 points since Mar 4, 2025

What each source reports

CVE List Score used 7.1

WordPress IE CSS3 Support Plugin <= 2.0.1 - Reflected Cross Site Scripting (XSS) vulnerability

Record: CVE-2025-26589
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-2025-5610 7.1

Record: EUVD-2025-5610
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-v6vq-mcjw-3qrm 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 IE CSS3 Support allows Reflected XSS. This issue affects IE CSS3 Support: from n/a through 2.0.1.

Record: GHSA-v6vq-mcjw-3qrm
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-2025-26589
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-2025-26589 is a high vulnerability (CVSS 7.1) in Cristopher Dino Ie Css3 Support, published March 3, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.32%, the 24th percentile. No source names a fixed version.