CVE-2022-50912
CVE-2022-50912 is a critical-severity vulnerability in Impresscms with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-434.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- CVSS v4: 9.3
- EPSS exploit prediction: 1% (58th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-2619
- Weakness: CWE-434
- Affected product: Impresscms
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2022-50912?
- 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.
- How severe is CVE-2022-50912?
- CVE-2022-50912 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2022-50912 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2022-50912?
- CVE-2022-50912 affects Impresscms. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2022-50912?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- Does CVE-2022-50912 have an EU (EUVD) identifier?
- Yes. CVE-2022-50912 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-2619.
- When was CVE-2022-50912 published?
- CVE-2022-50912 was published on 2026-01-13 and last updated on 2026-06-17.
References
- https://github.com/ImpressCMS/impresscms
- https://www.exploit-db.com/exploits/50890
- https://www.impresscms.org/
- https://www.vulncheck.com/advisories/impresscms-unrestricted-file-upload
Affected products (1)
- cpe:2.3:a:impresscms:impresscms:1.4.4:*:*:*:*:*:*:*
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