ExpressionEngine before 5.4.2 and 6.x before 6.0.3 allows PHP Code Injection by certain…
Priority MEDIUM 43CWE-94Published · 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-94.
Summary
ExpressionEngine before 5.4.2 and 6.x before 6.0.3 allows PHP Code Injection by certain authenticated users who can leverage Translate::save() to write to an _lang.php file under the system/user/language directory.
Why it matters now
EPSS 0.02832 86th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged 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:expressionengine:expressionengine:*:*:*:*:*:*:*:* | before 5.4.2; 6.0.0 to before 6.0.3 | Vulnerable | ExpressionEngine |
- cpe:2.3:a:expressionengine:expressionengine:*:*:*:*:*:*:*:* Versions before 5.4.2; 6.0.0 to before 6.0.3 Vulnerable ·ExpressionEngine
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-27230
- 2026-10-03 Alias added: GHSA-6p92-pcf6-32pp
References
More Expressionengine vulnerabilities
- TI-2021-12747 In Expression Engine before 6.0.3, addonIcon in Addons/file/mod.file.php relies on the… CVSS 3.1CRITICAL 9.8
- TI-2020-10544 ExpressionEngine before 5.3.2 allows remote attackers to upload and execute arbitrary… CVSS 3.1HIGH 8.8
- TI-2023-09084 In ExpressionEngine before 7.2.6, remote code execution can be achieved by an authenticated Control Panel user. CVSS 3.1HIGH 8.8
- TI-2017-00845 ExpressionEngine version 2.x < 2.11.8 and version 3.x < 3.5.5 create an object signing… CVSS 3.0HIGH 7.5
- TI-2020-06660 SQL injection in ExpressionEngine CVSS 3.1HIGH 7.2
- TI-2014-04390 Multiple SQL injection vulnerabilities in EllisLab ExpressionEngine before 2.9.1 allow… CVSS 2.0MEDIUM 6.5
Sources
- CVE-2021-27230 · CVE Program
- CVE-2021-27230 · NVD
- FIRST EPSS
- GHSA-6p92-pcf6-32pp · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences