How severe is CVE-2018-1000811?

CVE-2018-1000811 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-2018-1000811 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 48% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-1000811?

CVE-2018-1000811 affects Bludit. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-1000811?

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-2018-1000811 published?

CVE-2018-1000811 was published on 2018-12-20 and last updated on 2026-06-17.

CVE-2018-1000811

CVE-2018-1000811 is a high-severity vulnerability in Bludit with a CVSS 3.x base score of 8.8. Its EPSS exploit-prediction score of 48% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-434.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.5
EPSS exploit prediction: 48% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-434
Affected product: Bludit
Published: 2018-12-20
Last modified: 2026-06-17

Description

bludit version 3.0.0 contains a Unrestricted Upload of File with Dangerous Type vulnerability in Content Upload in Pages Editor that can result in Remote Command Execution. This attack appear to be exploitable via malicious user have to upload a crafted payload containing PHP code.

Frequently asked questions

What is CVE-2018-1000811?: bludit version 3.0.0 contains a Unrestricted Upload of File with Dangerous Type vulnerability in Content Upload in Pages Editor that can result in Remote Command Execution. This attack appear to be exploitable via malicious user have to upload a crafted payload containing PHP code.
How severe is CVE-2018-1000811?: CVE-2018-1000811 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-2018-1000811 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 48% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-1000811?: CVE-2018-1000811 affects Bludit. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-1000811?: 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-2018-1000811 published?: CVE-2018-1000811 was published on 2018-12-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:bludit:bludit:3.0.0:*:*:*:*:*:*:*

More vulnerabilities in Bludit

CVE-2026-25101 — Critical (CVSS 9.8): Bludit allows user's session identifier to be set before authentication. The value of this session ID stays the same…
CVE-2020-18879 — Critical (CVSS 9.8): Unrestricted File Upload in Bludit v3.8.1 allows remote attackers to execute arbitrary code by uploading malicious…
CVE-2019-17240 — Critical (CVSS 9.8): bl-kernel/security.class.php in Bludit 3.9.2 allows attackers to bypass a brute-force protection mechanism by using…
CVE-2020-20495 — Critical (CVSS 9.1): bludit v3.13.0 contains an arbitrary file deletion vulnerability in the backup plugin via the `deleteBackup' parameter.
CVE-2020-18190 — Critical (CVSS 9.1): Bludit v3.8.1 is affected by directory traversal. Remote attackers are able to delete arbitrary files via…
CVE-2026-25099 — High (CVSS 8.8): Bludit’s API plugin allows an authenticated attacker with a valid API token to upload files of any type and extension…

All CVEs affecting Bludit →

Other CWE-434 (Unrestricted Upload of File with Dangerous Type) vulnerabilities

CVE-2026-48283 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Unrestricted Upload of File with Dangerous Type…
CVE-2026-48276 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Unrestricted Upload of File with Dangerous Type…
CVE-2026-57700 — Critical (CVSS 10.0): Unrestricted Upload of File with Dangerous Type vulnerability in Daan.Dev OMGF Pro allows Using Malicious Files. This…
CVE-2025-69129 — Critical (CVSS 10.0): Unauthenticated Arbitrary File Upload in WordPress & WooCommerce Scraper Plugin, Import Data from Any Site <= 1.0.7…
CVE-2026-40772 — Critical (CVSS 10.0): Unauthenticated Arbitrary File Upload in GeekyBot <= 1.2.2 versions.
CVE-2026-40412 — Critical (CVSS 10.0): Unrestricted upload of file with dangerous type in Azure Orbital Spatio allows an unauthorized attacker to execute code…

Browse all CWE-434 (Unrestricted Upload of File with Dangerous Type) vulnerabilities →