CVE-2023-40667Network attack vector

Reflected XSS via unescaped request parameters

Published Sep 27, 2023 · Updated Apr 28, 2026

Reflected XSS in Lasso Analytics Lasso Lite 117 and earlier allows remote attackers to execute scripts via crafted request parameters. The plugin returns some request parameters in an HTML page without sanitizing or escaping them, causing attacker-controlled markup to execute in a visitor's browser. Exploitation requires a high-privilege user such as an administrator to open the crafted link, exposing that user's browser session to script-driven data access or actions.

CVSS severity6.1
Medium
EPSS probability0.40%
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 Lasso Analytics Lasso Lite 117 and earlier allows remote attackers to execute scripts via crafted request parameters. The plugin returns some request parameters in an HTML page without sanitizing or escaping them, causing attacker-controlled markup to execute in a visitor's browser. Exploitation requires a high-privilege user such as an administrator to open the crafted link, exposing that user's browser session to script-driven data access or actions.

The record

CVE
CVE-2023-40667
Published
Sep 27, 2023
Updated
Apr 28, 2026
Vendor
Lasso Analytics
Product
Lasso Lite
Classifications
CWE-79, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 27, 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 <=117 changes=[{"at":"118","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Lasso Analytics · Lasso Liteversion=n/a <=117 changes=[{"at":"118","status":"unaffected"}]

Published CVSS scores

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

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')
T1189Drive-by Compromise

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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