In XE 1.116, when uploading the Normal button, there is no restriction on the file…
Priority LOW 25CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.
Summary
In XE 1.116, when uploading the Normal button, there is no restriction on the file suffix, which leads to any file uploading to the files directory. Since .htaccess only restricts the PHP type, uploading HTML-type files leads to stored XSS vulnerabilities. If the .htaccess configuration is improper, for example before the XE 1.11.2 version, you can upload the PHP type file to GETSHELL.
Why it matters now
EPSS 0.00487 42nd 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:xpressengine:xpressengine:*:*:*:*:*:*:*:* | before 1.11.6 | Vulnerable | Xpressengine |
- cpe:2.3:a:xpressengine:xpressengine:*:*:*:*:*:*:*:* Versions before 1.11.6 Vulnerable ·Xpressengine
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-44912
- 2026-10-03 Alias added: GHSA-55vj-h525-w8cj
References
More Xpressengine vulnerabilities
- TI-2021-08357 XpressEngine file upload vulnerability CVSS 3.1CRITICAL 9.8
- TI-2011-04606 XpressEngine Update Query sql injection CVSS 3.1CRITICAL 9.8
- TI-2021-20325 XE before 1.11.6 is vulnerable to Unrestricted file upload via… CVSS 3.1MEDIUM 5.4
Sources
- CVE-2021-44912 · CVE Program
- CVE-2021-44912 · NVD
- FIRST EPSS
- GHSA-55vj-h525-w8cj · 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