🛡️ CVE-2023-33196 — craft-cms

🟡 CVSS 5.5 — Medium ⚠️ Exploit Public CWE-80 NVD
5.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Craft CMS stored XSS in review volume

Summary

XSS can be triggered by review volumes

PoC

1. Access setting tab

2. Create new assets

3. In assets name inject payload: "<script>alert(1337)</script>

4. Click Utilities tab

5. Choose all volumes, or volume trigger xss

6. Click Update asset indexes.

7. Wait to assets update success.

8. Progress complete.

9. Click on review button will trigger XSS

Root cause

Function: index.php?p=admin/actions/asset-indexes/process-indexing-session&v=1680710595770

After loading completed, progess will load:

"skippedEntries"

and

"missingEntries"

These parameters is not yet filtered, I just tried "skippedEntries" but I think it will be work with "missingEntries"

My reponse:

{

"session": {

"id": 10,

"indexedVolumes": {

"6": "\"<script>alert(1337)</script>"

},

"totalEntries": 2235,

"processedEntries": 2235,

"cacheRemoteImages": true,

"listEmptyFolders": false,

"isCli": false,

"actionRequired": true,

"dateCreated": "Apr 5, 2023, 9:03:16 AM",

"skippedEntries": [

"\"<script>alert(1337)</script>/assetpreviews/Image.php",

"\"<script>alert(1337)</script>/assetpreviews/Pdf.php"

],

"missingEntries": {

"folders": [],

"files": []

},

"processIfRootEmpty": false

},

"skipDialog": false

}

Resolved in https://github.com/craftcms/cms/commit/053d7119697e480ff81c5723bb9a33eaa49e0fc7

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. A user must be tricked into taking some action. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality low, integrity low, availability low.

Weakness class

CVE-2023-33196 is classified as CWE-80: Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special characters such as "<", ">", and "&" that could be interpreted as web-scripting elements when they are sent to a downstream…

Affected software

CVE-2023-33196 is recorded against 2 packages.

  • craft-cms
  • craftcms/cms (from 4.0.0-RC1 up to 4.4.7)

Timeline and source

Published on 26 May 2023 and last revised on 17 June 2026. A public exploit is known to exist, which raises the urgency of patching considerably. A vendor advisory or fix has been published. Record sourced from NVD.

References

github.com
github.com
github.com
github.com
github.com
github.com

Details

Severity MEDIUM
CVSS Score 5.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L
CWE CWE-80
Public Exploit ⚠️ Yes
Source NVD
Published 2023-05-26
Updated 2026-08-12
Modified 2026-06-17

Affected Packages

Software From version Fixed in
craft-cms — —
craftcms/cms 4.0.0-RC1 4.4.7

Similar Threats

Exploit Protection

Are you running craft-cms?

CVE-2023-33196 carries CVSS 5.5 Medium rating and a public exploit already exists. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.

Check My Site For CVE-2023-33196 →

No credit card required  ·  Results in minutes

ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

Browse related advisories

All advisoriesCVECVE 2023