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Vulnerability record · CVE-2022-50912 · published 13 January 2026

CVE-2022-50912: Impresscms unrestricted file upload vulnerability

Impresscms · Impresscms

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.

9.3 CVSS 4.0 Critical EPSS 1.1% · top 34.7% CWE-434 · Unrestricted file upload
9.3CVSS 4.0 base score
1.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 1 tagged exploit
17 Jun 2026Last modified by NVD

Description

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/ImpressCMS/impresscms Product
https://www.exploit-db.com/exploits/50890 ExploitThird Party AdvisoryVDB Entry
https://www.impresscms.org/ Product
https://www.vulncheck.com/advisories/impresscms-unrestricted-file-upload Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2008-3453Impresscms vulnerabilityMultiple unspecified vulnerabilities in ImpressCMS 1.0 have unknown impact and attack vectors, related to modules/admin.php and "a few files."EPSS 1.4%9.8CVE-2021-26599Impresscms sql injection vulnerabilityImpressCMS before 1.4.3 allows include/findusers.php groups SQL Injection.EPSS 21%9.8CVE-2021-26600Impresscms type confusion vulnerabilityImpressCMS before 1.4.3 has plugins/preloads/autologin.php type confusion with resultant Authentication Bypass (!= instead of !==).EPSS 5.6%9.8CVE-2022-24977Impresscms path traversal vulnerabilityImpressCMS before 1.4.2 allows unauthenticated remote code execution via ...../// directory traversal in origName or imageName, leading to unsafe int…EPSS 6.4%8.1CVE-2021-26601Impresscms path traversal vulnerabilityImpressCMS before 1.4.3 allows libraries/image-editor/image-edit.php image_temp Directory Traversal.EPSS 3.2%7.5CVE-2010-4271Impresscms sql injection vulnerabilitySQL injection vulnerability in ImpressCMS before 1.2.3 RC2 allows remote attackers to execute arbitrary SQL commands via unspecified vectors.EPSS 1.1%7.2CVE-2022-26986Impresscms sql injection vulnerabilitySQL Injection in ImpressCMS 1.4.3 and earlier allows remote attackers to inject into the code in unintended way, this allows an attacker to read and …EPSS 4.1%7.1CVE-2019-25703Impresscms sql injection vulnerabilityImpressCMS 1.3.11 contains a time-based blind SQL injection vulnerability that allows authenticated attackers to manipulate database queries by injec…EPSS 0.34%

Source: NIST National Vulnerability Database (record CVE-2022-50912), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.