CVE-2021-3256
KuaiFanCMS V5.x contains an arbitrary file read vulnerability in the html_url parameter of the...
KuaiFanCMS V5.x contains an arbitrary file read vulnerability in the html_url parameter of the chakanhtml.module.php file.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
KuaiFanCMS V5.x contains an arbitrary file read vulnerability in the html_url parameter of the chakanhtml.module.php file.
- Record
CVE-2021-3256- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - CVSS 2.0
- 4.0 Medium
AV:N/AC:L/Au:S/C:P/I:N/A:N - Weakness
- CWE-88
- Updated
- 2026-11-02
CVE List No score
KuaiFanCMS V5.x contains an arbitrary file read vulnerability in the html_url parameter of the chakanhtml.module.php file.
- Record
CVE-2021-3256- Updated
- 2026-11-02
EUVDEUVD-2021-26595 No score
KuaiFanCMS V5.x contains an arbitrary file read vulnerability in the html_url parameter of the chakanhtml.module.php file.
- Record
EUVD-2021-26595- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-vwrx-c7f2-w23m No score
KuaiFanCMS V5.x contains an arbitrary file read vulnerability in the html_url parameter of the...
KuaiFanCMS V5.x contains an arbitrary file read vulnerability in the html_url parameter of the chakanhtml.module.php file.
- Record
GHSA-vwrx-c7f2-w23m- Weakness
- CWE-88
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-3256 is a medium vulnerability (CVSS 6.5) in Kuaifan Kuaifancms, published June 11, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.89%, the 59th percentile. No source names a fixed version.