CVE-2018-20599
CVE-2018-20599 is a high-severity vulnerability in Ucms Project Ucms with a CVSS 3.x base score of 8.8. 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-94.
Key facts
- Severity: High (CVSS 3.x base score 8.8)
- CVSS v2: 6.5
- EPSS exploit prediction: 2% (71st percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-94
- Affected product: Ucms Project Ucms
- Published:
- Last modified:
Description
UCMS 1.4.7 allows remote attackers to execute arbitrary PHP code by entering this code during an index.php sadmin_fileedit action.
Frequently asked questions
- What is CVE-2018-20599?
- UCMS 1.4.7 allows remote attackers to execute arbitrary PHP code by entering this code during an index.php sadmin_fileedit action.
- How severe is CVE-2018-20599?
- CVE-2018-20599 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2018-20599 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2018-20599?
- CVE-2018-20599 affects Ucms Project Ucms. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2018-20599?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2018-20599 published?
- CVE-2018-20599 was published on 2018-12-30 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:ucms_project:ucms:1.4.7:*:*:*:*:*:*:*
More vulnerabilities in Ucms Project Ucms
- CVE-2022-38297 — Critical (CVSS 9.8): UCMS v1.6.0 contains an authentication bypass vulnerability which is exploited via cookie poisoning.
- CVE-2022-35426 — Critical (CVSS 9.8): UCMS 1.6 is vulnerable to arbitrary file upload via ucms/sadmin/file PHP file.
- CVE-2020-25537 — Critical (CVSS 9.8): File upload vulnerability exists in UCMS 1.5.0, and the attacker can take advantage of this vulnerability to obtain…
- CVE-2020-25483 — Critical (CVSS 9.8): An arbitrary command execution vulnerability exists in the fopen() function of file writes of UCMS v1.4.8, where an…
- CVE-2018-17036 — Critical (CVSS 9.8): An issue was discovered in UCMS 1.4.6 and 1.6. It allows PHP code injection during installation via the systemdomain…
- CVE-2018-17035 — Critical (CVSS 9.8): UCMS 1.4.6 has SQL injection during installation via the install/index.php mysql_dbname parameter.
All CVEs affecting Ucms Project Ucms →
Other CWE-94 (Code Injection) vulnerabilities
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- CVE-2026-53576 — Critical (CVSS 10.0): Kestra is an open-source, event-driven orchestration platform. Prior to 1.0.45 and 1.3.21, the authentication filter…
- CVE-2026-10561 — Critical (CVSS 10.0): IBM Langflow OSS 1.0.0 through 1.9.3 has an vulnerability due to an improper isolation of Python execution combined…
- CVE-2026-25470 — Critical (CVSS 10.0): Improper Control of Generation of Code ('Code Injection') vulnerability in ACPT ACPT (Pro) - Custom Post Types Plugin…
- CVE-2026-48836 — Critical (CVSS 10.0): Unauthenticated Remote Code Execution (RCE) in Easy Invoice <= 2.1.19 versions.