CVE-2023-33194Public exploitNetwork attack vector

Stored XSS via unescaped Quick Post errors

Published May 26, 2023 · Updated Jan 14, 2025

Stored XSS in Craft CMS 3.0.0 through 3.8.5 and 4.0.0-RC1 through 4.4.5 allows remote authenticated users to run script. QuickPostWidget.js concatenates server-returned validation errors into an HTML list item, so a crafted section label is parsed as markup. An authenticated user must store the label, and a control-panel user must submit a blank Quick Post slug; the script then runs in that user's browser.

CVSS severity3.7
Low
EPSS probability0.62%
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 Craft CMS 3.0.0 through 3.8.5 and 4.0.0-RC1 through 4.4.5 allows remote authenticated users to run script. QuickPostWidget.js concatenates server-returned validation errors into an HTML list item, so a crafted section label is parsed as markup. An authenticated user must store the label, and a control-panel user must submit a blank Quick Post slug; the script then runs in that user's browser.

The record

CVE
CVE-2023-33194
Published
May 26, 2023
Updated
Jan 14, 2025
Vendor
Pixel & Tonic
Product
Craft CMS
Classifications
CWE-80, CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 26, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 14, 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=>= 3.0.0, <= 3.8.5
  2. Affected versionversion=>= 4.0.0-RC1, < 4.4.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Pixel & Tonic · Craft CMSversion=>= 3.0.0, <= 3.8.5; version=>= 4.0.0-RC1, < 4.4.6

Published CVSS scores

4.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
3.7GitHubCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-80Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
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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