CVE-2025-31891

WordPress Gosign – Posts Slider Block plugin <= 1.1.0 - Cross Site Scripting (XSS) vulnerability

6.5 Medium

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Gosign Gosign – Posts Slider Block gosign-posts-slider-block allows Stored XSS.This issue affects Gosign – Posts Slider Block: from n/a through <= 1.1.0.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: Required

What an attacker can affect

Confidentiality: Low
Integrity: Low
Availability: Low

Exploit likelihood

0.23%Up 0.2 points since Apr 2, 2025

What each source reports

CVE List Score used 6.5

WordPress Gosign – Posts Slider Block plugin <= 1.1.0 - Cross Site Scripting (XSS) vulnerability

Record: CVE-2025-31891
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
Weakness: CWE-79
Updated: 2026-11-02

EUVDEUVD-2025-9160 6.5

Record: EUVD-2025-9160
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
Updated: 2026-11-02

GitHub AdvisoriesGHSA-75jh-c6rj-5xh5 6.5

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

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Gosign Gosign – Posts Slider Block allows Stored XSS. This issue affects Gosign – Posts Slider Block: from n/a through 1.1.0.

Record: GHSA-75jh-c6rj-5xh5
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
Weakness: CWE-79
Updated: 2026-11-02

NVD 6.5

Record: CVE-2025-31891
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
Weakness: CWE-79
Updated: 2026-11-02

Affected products

gosign – posts slider block

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-2025-31891 is a medium vulnerability (CVSS 6.5) in Gosign – Posts Slider Block, published April 1, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.23%, the 13th percentile. No source names a fixed version.