Textpattern V4.8.4 contains an arbitrary file upload vulnerability where a plug-in can be…
Priority LOW 30CWE-434Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-434.
Summary
Textpattern V4.8.4 contains an arbitrary file upload vulnerability where a plug-in can be loaded in the background without any security verification, which may lead to obtaining system permissions.
Why it matters now
EPSS 0.00755 55th 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:textpattern:textpattern:4.8.4:*:*:*:*:*:*:* | 4.8.4 | Vulnerable | Textpattern |
- cpe:2.3:a:textpattern:textpattern:4.8.4:*:*:*:*:*:*:* Versions 4.8.4 Vulnerable ·Textpattern
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-30209
- 2026-10-03 Alias added: GHSA-53fv-r9r8-jc5p
References
More Textpattern vulnerabilities
- TI-2023-09955 An arbitrary file upload vulnerability in the plugin upload function of Textpattern… CVSS 3.1HIGH 8.8
- TI-2023-18162 Directory Traversal vulnerability in Textpattern CMS v4.8.8 allows a remote authenticated… CVSS 3.1HIGH 7.2
- TI-2023-11802 An arbitrary file upload vulnerability in the upload plugin of Textpattern v4.8.8 and… CVSS 3.1HIGH 7.2
- TI-2026-25434 Textpattern CMS 4.9.0: Second-Order XSS via Atom Feed Injection CVSS 4.0MEDIUM 5.1
- TI-2018-05387 An issue was discovered in Textpattern CMS 4.6.2 and earlier. CVSS 3.0CRITICAL 9.8
- TI-2020-13637 Textpattern 4.7.3 contains an aribtrary file load via the file_insert function in include/txp_file.php. CVSS 3.1CRITICAL 9.8
Sources
- CVE-2021-30209 · CVE Program
- CVE-2021-30209 · NVD
- FIRST EPSS
- GHSA-53fv-r9r8-jc5p · GitHub Advisory Database · CC BY 4.0
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