CVE-2023-45770Network attack vector

Unauthenticated script execution via unsanitized reflected parameters

Published Oct 24, 2023 · Updated Apr 28, 2026

Reflected XSS in Fast WP Speed 1.0.0 and earlier allows remote attackers to inject scripts through crafted requests. Public advisories attribute the flaw to parameters returned to a page without sufficient sanitization or output escaping, but they do not identify the parameter or rendering path. Exploitation requires an attacker to lure a user, such as an administrator, into opening a crafted link, after which the script runs in that user's browser context.

CVSS severity7.1
High
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in Fast WP Speed 1.0.0 and earlier allows remote attackers to inject scripts through crafted requests. Public advisories attribute the flaw to parameters returned to a page without sufficient sanitization or output escaping, but they do not identify the parameter or rendering path. Exploitation requires an attacker to lure a user, such as an administrator, into opening a crafted link, after which the script runs in that user's browser context.

The record

CVE
CVE-2023-45770
Published
Oct 24, 2023
Updated
Apr 28, 2026
Vendor
Fast WP Speed
Product
Fast WP Speed
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 24, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=n/a <=1.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Fast WP Speed · Fast WP Speedversion=n/a <=1.0.0

Published CVSS scores

6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
7.1PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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