Typecho V1.1 allows remote attackers to send shell commands via base64-encoded serialized data, as demonstrated by SSRF.
Priority MEDIUM 48CWE-918Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA.
Summary
Typecho V1.1 allows remote attackers to send shell commands via base64-encoded serialized data, as demonstrated by SSRF.
Why it matters now
EPSS 0.03487 89th 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
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-18753
- 2026-10-03 Alias added: GHSA-cw4f-c442-gqwh
References
More Typecho vulnerabilities
- TI-2023-09861 typecho 1.1/17.10.30 was discovered to contain a remote code execution (RCE) vulnerability via install.php. CVSS 3.1CRITICAL 9.8
- TI-2024-23463 A stored cross-site scripting (XSS) vulnerability in Typecho v1.3.0 allows attackers to… CVSS 3.1CRITICAL 9.0
- TI-2023-27325 Typecho v1.2.1 was discovered to be vulnerable to an XML Quadratic Blowup attack via the… CVSS 3.1HIGH 7.5
- TI-2024-23462 Typecho v1.3.0 was discovered to contain a race condition vulnerability in the post… CVSS 3.1MEDIUM 6.5
- TI-2024-23461 Typecho v1.3.0 was discovered to contain a Client IP Spoofing vulnerability, which allows… CVSS 3.1MEDIUM 5.3
- TI-2020-13970 Open redirect vulnerability in typecho 1.1-17.10.30-release via the referer parameter to Login.php. CVSS 3.1MEDIUM 6.1
Sources
- CVE-2018-18753 · CVE Program
- CVE-2018-18753 · NVD
- FIRST EPSS
- GHSA-cw4f-c442-gqwh · GitHub Advisory Database · CC BY 4.0
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