CVE-2023-38836
HighPublic exploitFile Upload vulnerability in BoidCMS v.2.0.0 allows a remote attacker to execute arbitrary code by adding a GIF header to bypass MIME type checks.
Published Aug 21, 2023 · Updated Aug 12, 2026
Key Facts
Patch immediately- CVE-2023-38836 is a high-severity vulnerability (CVSS 8.8 v3.1) affecting Boidcms.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 76% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v3.1
8.8
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
76%
Higher than 99.5% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
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Description
File Upload vulnerability in BoidCMS v.2.0.0 allows a remote attacker to execute arbitrary code by adding a GIF header to bypass MIME type checks.
Affected Products
1 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| BoidcmsBoidcms | 2.0.0 | n/a |
Timeline
Publicly disclosed
Aug 21, 2023
Last updated
Aug 12, 2026
Weakness Type
- CWE-434 Unrestricted Upload of File with Dangerous Type
References
- advisoryhttps://github.com/CVEProject/cvelistV5/tree/main/cves/2023/38xxx/CVE-2023-38836.json
- advisoryhttps://nvd.nist.gov/vuln/detail/CVE-2023-38836
- exploithttps://github.com/BoidCMS/BoidCMS/issues/27
- exploitMSF cve_2023_38836_boidcms.rb
- exploitExploitDB-51741
FAQ
Common Questions.
File Upload vulnerability in BoidCMS v.2.0.0 allows a remote attacker to execute arbitrary code by adding a GIF header to bypass MIME type checks.
Affected: Boidcms versions 2.0.0. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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