CVE-2023-45770 HIGH

CVE-2023-45770: WordPress Fast WP Speed Plugin <= 1.0.0 is vulnerable to Cross Site Scripting (XSS)

Vendor Fastwpspeed

Product Fast WP Speed

Weakness CWE-79 · XSS

Published October 24, 2023

Last update April 28, 2026

View on NVD All CVEs

CVSS base score

7.1/10

Attack vector Network

Attack complexity Low

Privileges required None

User interaction Required

Confidentiality Low

Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

What the vulnerability does

01Description

Unauth. Reflected Cross-Site Scripting (XSS) vulnerability in Fastwpspeed Fast WP Speed plugin <= 1.0.0 versions.

Explanation of Vulnerability in Simple Terms

02Summary

Fast WP Speed versions up to 1.0.0 contain a cross-site scripting (XSS) vulnerability that allows attackers to inject malicious scripts into web pages. An attacker can craft a malicious link that, when clicked by a site visitor, executes arbitrary JavaScript in the victim's browser. This can lead to session hijacking, credential theft, or defacement. The vulnerability requires user interaction and affects the integrity and confidentiality of site data.

What an attacker can do

03Attacker Capabilities

Inject and execute malicious JavaScript in visitors' browsers to steal credentials or hijack sessions.

Potential impact on your site

04Site Impact

Visitors' sessions and credentials can be compromised; site reputation and data security at risk.

Conditions required to exploit

05Prerequisites

Attacker must trick a site visitor into clicking a malicious link; no authentication required.

Key dates

06Disclosure timeline

October 24, 2023 CVE published

April 28, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2023-45770 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/79.html AskarLabs — CWE-79 write-up Cross-Site Scripting

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