CVE-2022-3833Public exploitNetwork attack vector

Administrator-level stored XSS via unsanitized color settings

Published Nov 28, 2022 · Updated Apr 25, 2025

Stored XSS in ThematoSoup Fancier Author Box 1.4 and earlier allows remote authenticated users to execute script through plugin settings. Color-setting fields accept an attribute-breaking value without sanitization or output escaping, storing markup that runs on mouseover. Administrator access is required, and the flaw remains reachable when unfiltered_html is disabled, including WordPress multisite deployments.

CVSS severity4.8
Medium
EPSS probability0.51%
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 ThematoSoup Fancier Author Box 1.4 and earlier allows remote authenticated users to execute script through plugin settings. Color-setting fields accept an attribute-breaking value without sanitization or output escaping, storing markup that runs on mouseover. Administrator access is required, and the flaw remains reachable when unfiltered_html is disabled, including WordPress multisite deployments.

The record

CVE
CVE-2022-3833
Published
Nov 28, 2022
Updated
Apr 25, 2025
Vendor
ThematoSoup
Product
Fancier Author Box
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Nov 28, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 25, 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 <=1.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

ThematoSoup · Fancier Author Boxversion=0 <=1.4

Published CVSS scores

4.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
5.5WordfenceCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
4.8CISA-ADPCVSS: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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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