An Arbitrary File Upload vulnerability exists in Microweber 1.1.3 that allows attackers…
Priority MEDIUM 40CWE-434Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-434.
Summary
An Arbitrary File Upload vulnerability exists in Microweber 1.1.3 that allows attackers to getshell via the Settings Upload Picture section by uploading pictures with malicious code, user.ini.
Why it matters now
EPSS 0.00942 61st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:microweber:microweber:1.1.3:*:*:*:*:*:*:* | 1.1.3 | Vulnerable | microweber |
- cpe:2.3:a:microweber:microweber:1.1.3:*:*:*:*:*:*:* Versions 1.1.3 Vulnerable ·microweber
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-36461
- 2026-10-03 Alias added: GHSA-f987-r737-hx6g
References
More Microweber vulnerabilities
- TI-2023-01763 Command Injection in microweber/microweber CVSS 3.1CRITICAL 9.8
- TI-2023-02100 Improper Privilege Management in microweber/microweber CVSS 3.1HIGH 8.8
- TI-2022-14518 Microweber v1.2.15 was discovered to allow attackers to perform an account takeover via a host header injection attack. CVSS 3.1HIGH 8.8
- TI-2023-04891 Use of Hard-coded Credentials in microweber/microweber CVSS 3.1HIGH 7.5
- TI-2025-37870 Microweber CMS 2.0 has Weak Password Requirements. CVSS 3.1HIGH 8.3
- TI-2022-04247 Cross-site Scripting (XSS) - Stored in microweber/microweber CVSS 3.1MEDIUM 6.1
Sources
- CVE-2021-36461 · CVE Program
- CVE-2021-36461 · NVD
- FIRST EPSS
- GHSA-f987-r737-hx6g · GitHub Advisory Database · CC BY 4.0
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