CVE-2021-23260 json
Stored XSS Vulnerability in File Name of the File Upload function
published 2021-12-02 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-10359
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 38%
- public exploits
- 0
- none known
Summary
Authenticated users with Site roles may inject XSS scripts via file names that will execute in the browser for this and other users of the same site.
Patch / fix
- Crafter Software Crafter CMS 3.1.12
Exploit prediction
0.44% chance of exploitation in the next 30 days, higher than 38% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:N/A:L |
| NVD | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 3.5 | AV:N/AC:M/Au:S/C:N/I:P/A:N |
Affected products
- Crafter Software Crafter CMS
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
docs.craftercms.org
/en/3.1/security/advisory.html#cv-2021120103
vendor-advisory
Sources
- CVE List CVE-2021-23260
- NVD CVE-2021-23260
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