ImpressCMS 1.4.4 - Unrestricted File Upload
Priority HIGH 81CWE-434Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-434.
Summary
ImpressCMS 1.4.4 contains a file upload vulnerability with weak extension sanitization that allows attackers to upload potentially malicious files. Attackers can bypass file upload restrictions by using alternative file extensions .php2.php6.php7.phps.pht to execute arbitrary PHP code on the server.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01217 68th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| ImpressCMS | ImpressCMS | 1.4.4 | — | No fix listed | CNA |
- ImpressCMS VendorImpressCMS Affected 1.4.4 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:impresscms:impresscms:1.4.4:*:*:*:*:*:*:* | 1.4.4 | Vulnerable | ImpressCMS |
- cpe:2.3:a:impresscms:impresscms:1.4.4:*:*:*:*:*:*:* Versions 1.4.4 Vulnerable ·ImpressCMS
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2022-50912
- 2026-10-03 Alias added: GHSA-9h6r-9xvw-j888
References
More Impresscms vulnerabilities
- TI-2019-15755 ImpressCMS 1.3.11 SQL Injection via bid Parameter CVSS 4.0HIGH 7.1
- TI-2021-08319 ImpressCMS before 1.4.3 allows include/findusers.php groups SQL Injection. CVSS 3.1CRITICAL 9.8
- TI-2023-19270 A cross-site scripting (XSS) vulnerability in ImpressCMS v1.4.5 and before allows… CVSS 3.1MEDIUM 4.8
- TI-2022-08771 ImpressCMS before 1.4.2 allows unauthenticated remote code execution via .....///… CVSS 3.1CRITICAL 9.8
- TI-2021-08320 ImpressCMS before 1.4.3 has plugins/preloads/autologin.php type confusion with resultant… CVSS 3.1CRITICAL 9.8
- TI-2008-03313 Multiple unspecified vulnerabilities in ImpressCMS 1.0 have unknown impact and attack… CVSS 2.0HIGH 10.0
Sources
- CVE-2022-50912 · CVE Program
- CVE-2022-50912 · NVD
- FIRST EPSS
- GHSA-9h6r-9xvw-j888 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences