CVE-2023-3666Public exploitNetwork attack vector

Administrator-level stored XSS via unescaped Button Text

Published Sep 3, 2025 · Updated Sep 3, 2025

Stored XSS in Maeve Lander Sticky Side Buttons before 2.0.0 allows remote authenticated users to inject scripts through Button Text. The Button Text setting is stored without sanitization and later rendered without escaping, causing supplied JavaScript to execute when the affected page loads. Administrator access is required, and the issue is reachable when unfiltered_html is disabled, including on multisite deployments.

CVSS severity3.3
Low
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Maeve Lander Sticky Side Buttons before 2.0.0 allows remote authenticated users to inject scripts through Button Text. The Button Text setting is stored without sanitization and later rendered without escaping, causing supplied JavaScript to execute when the affected page loads. Administrator access is required, and the issue is reachable when unfiltered_html is disabled, including on multisite deployments.

The record

CVE
CVE-2023-3666
Published
Sep 3, 2025
Updated
Sep 3, 2025
Vendor
Maeve Lander
Product
Sticky Side Buttons
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Sep 3, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 3, 2025Record 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=0 <2.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Maeve Lander · Sticky Side Buttonsversion=0 <2.0.0

Published CVSS scores

3.3CISA-ADPCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript/JScript

Public exploit references

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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