CVE-2022-38703Network attack vector

Admin stored XSS via unsanitized plugin settings

Published Sep 23, 2022 · Updated Apr 28, 2026

Cross-site scripting in MaxButtons 9.2 and earlier allows remote authenticated administrators to execute script via stored plugin settings. The plugin insufficiently sanitizes input and escapes output before rendering saved button configuration, allowing payloads to persist and run in viewers' browsers. Administrator authentication and a victim viewing affected content are required; the documented impact is browser-side integrity compromise without service interruption.

CVSS severity3.4
Low
EPSS probability0.46%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in MaxButtons 9.2 and earlier allows remote authenticated administrators to execute script via stored plugin settings. The plugin insufficiently sanitizes input and escapes output before rendering saved button configuration, allowing payloads to persist and run in viewers' browsers. Administrator authentication and a victim viewing affected content are required; the documented impact is browser-side integrity compromise without service interruption.

The record

CVE
CVE-2022-38703
Published
Sep 23, 2022
Updated
Apr 28, 2026
Vendor
Max Foundry
Product
MaxButtons
Classifications
CWE-79, T1189
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 23, 2022CVE 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=<= 9.2 <=9.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Max Foundry · MaxButtonsversion=<= 9.2 <=9.2

Published CVSS scores

3.4PatchstackCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:N/I:L/A:N
4.8NVDCVSS:3.1/AV:N/AC:L/PR:H/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
Privilegesauthenticated
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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