CVE-2018-18308
In the 4.2.23 version of BigTree, a Stored XSS vulnerability has been discovered in /admin/ajax...
CVE-2018-18308 is a medium vulnerability (CVSS 6.1) in Bigtreecms Bigtree Cms, published October 16, 2018. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 3.65%, the 89th percentile. No source names a fixed version.
In the 4.2.23 version of BigTree, a Stored XSS vulnerability has been discovered in /admin/ajax/file-browser/upload/ (aka the image upload area).
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
In the 4.2.23 version of BigTree, a Stored XSS vulnerability has been discovered in /admin/ajax/file-browser/upload/ (aka the image upload area).
- Record
CVE-2018-18308- CVSS 3.0
- 6.1 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
In the 4.2.23 version of BigTree, a Stored XSS vulnerability has been discovered in /admin/ajax/file-browser/upload/ (aka the image upload area).
- Record
CVE-2018-18308- Updated
- 2026-11-02
EUVDEUVD-2018-10041 No score
In the 4.2.23 version of BigTree, a Stored XSS vulnerability has been discovered in /admin/ajax/file-browser/upload/ (aka the image upload area).
- Record
EUVD-2018-10041- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-8qrm-2wm8-6v53
In the 4.2.23 version of BigTree, a Stored XSS vulnerability has been discovered in /admin/ajax...
In the 4.2.23 version of BigTree, a Stored XSS vulnerability has been discovered in /admin/ajax/file-browser/upload/ (aka the image upload area).
- Record
GHSA-8qrm-2wm8-6v53- CVSS 3.0
- 6.1 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
OSV
In the 4.2.23 version of BigTree, a Stored XSS vulnerability has been discovered in /admin/ajax/file-browser/upload/ (aka the image upload area).
- Record
CVE-2018-18308- CVSS 3.0
- 6.1 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | BigTree CMS 4.2.23 - Cross-Site Scripting | 2018-10-17 |
History
| When | Changed | Sources |
|---|---|---|
| 2026-11-03 | aliases | EUVD |
| 2026-11-02 | created | CVE List, Exploit-DB, GitHub Advisories, NVD, OSV |
References
packetstormsecurity.com/files/149788/BigTree-CMS-4.2.23-Cross-Site-Scripting.html
exploit-db.com/exploits/45628
github.com/bigtreecms/BigTree-CMS/issues/356
nvd.nist.gov/vuln/detail/CVE-2018-18308