CVE-2016-11020
Kunena before 5.0.4 does not restrict avatar file extensions to gif, jpeg, jpg, and png. This can...
CVE-2016-11020 is a critical vulnerability (CVSS 9.8) in Kunena, published February 24, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.88%, the 87th percentile. No source names a fixed version.
- Severity
- 9.8 CriticalCVSS 3.1, NVD
- Exploit chance
- 2.88%EPSS, 87th percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
- No fix listedNo source names one
Description
Kunena before 5.0.4 does not restrict avatar file extensions to gif, jpeg, jpg, and png. This can lead to XSS and remote code execution.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
Affected products
What each source reports
NVD Score used
Kunena before 5.0.4 does not restrict avatar file extensions to gif, jpeg, jpg, and png. This can lead to XSS and remote code execution.
- Record
CVE-2016-11020- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-434
- Updated
- 2026-11-02
CVE ListNo score
Kunena before 5.0.4 does not restrict avatar file extensions to gif, jpeg, jpg, and png. This can lead to XSS and remote code execution.
- Record
CVE-2016-11020- Updated
- 2026-11-02
EUVDEUVD-2016-2011No score
Kunena before 5.0.4 does not restrict avatar file extensions to gif, jpeg, jpg, and png. This can lead to XSS and remote code execution.
- Record
EUVD-2016-2011- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-gffh-9h9q-xv2hNo score
Kunena before 5.0.4 does not restrict avatar file extensions to gif, jpeg, jpg, and png. This can...
Kunena before 5.0.4 does not restrict avatar file extensions to gif, jpeg, jpg, and png. This can lead to XSS.
- Record
GHSA-gffh-9h9q-xv2h- Updated
- 2026-11-02
OSV
Kunena before 5.0.4 does not restrict avatar file extensions to gif, jpeg, jpg, and png. This can lead to XSS and remote code execution.
- Record
CVE-2016-11020- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.