Chevereto before 3.17.1 allows Cross Site Scripting (XSS) via an image title at the image upload stage.
Priority LOW 29CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.
Summary
Chevereto before 3.17.1 allows Cross Site Scripting (XSS) via an image title at the image upload stage.
Why it matters now
EPSS 0.00894 59th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-31721
- 2026-10-03 Alias added: GHSA-jxpj-gqq9-qj73
References
More Chevereto vulnerabilities
- TI-2012-02533 Directory traversal vulnerability in Upload/engine.php in Chevereto 1.9.1 allows remote… CVSS 2.0MEDIUM 5.0
- TI-2017-14397 Stored XSS vulnerabilities in chevereto CMS before version 3.8.11, one in the user… CVSS 3.0MEDIUM 6.1
- TI-2018-08623 Chevereto Free before 1.0.13 has XSS. CVSS 3.0MEDIUM 5.4
- TI-2012-02532 Cross-site scripting (XSS) vulnerability in Upload/engine.php in Chevereto 1.91 allows… CVSS 2.0MEDIUM 4.3
Sources
- CVE-2021-31721 · CVE Program
- CVE-2021-31721 · NVD
- FIRST EPSS
- GHSA-jxpj-gqq9-qj73 · GitHub Advisory Database · CC BY 4.0
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