CVE-2023-51399

WordPress Back Button Widget Plugin <= 1.6.3 is vulnerable to Cross Site Scripting (XSS)

6.5 Medium

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in WPFactory Back Button Widget allows Stored XSS.This issue affects Back Button Widget: from n/a through 1.6.3.

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

0.33%Up 0.3 points since Dec 30, 2023

What each source reports

CVE List Score used 6.5

WordPress Back Button Widget Plugin <= 1.6.3 is vulnerable to Cross Site Scripting (XSS)

Record: CVE-2023-51399
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-2023-56120 6.5

Record: EUVD-2023-56120
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-4p23-7pp3-5wcj 6.5

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

Record: GHSA-4p23-7pp3-5wcj
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-2023-51399
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
CVSS 3.1: 5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

Affected products

wpfactory back button widget

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-2023-51399 is a medium vulnerability (CVSS 6.5) in Wpfactory Back Button Widget, published December 29, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.33%, the 26th percentile. No source names a fixed version.