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
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | craftcms/cms | >= 4.0.0-RC1, < 4.4.7 | 4.4.7 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L- Weakness (CWE)
CWE-79, CWE-80- Platform
- Composer
- Package
craftcms/cms- Disclosed
- 26.05.2023
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-cjmm-x9x9-m2w5 - CC BY 4.0
Vulnerability history: craftcms/cms
All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 127
- First → latest
- 07.2021 08.2026
- Without a fix
- 6
- Exploited in attacks
- 4
Severity breakdown
- Critical 9
- High 41
- Medium 65
- Low 12
Disclosures per year
- 2021: 3
- 2022: 22
- 2023: 13
- 2024: 9
- 2025: 6
- 2026: 74
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Craft CMS stored XSS in review volume this entry
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