CVE-2018-17876
Coaster CMS Stored Cross-site Scripting vulnerability
A Stored XSS vulnerability has been discovered in the v5.5.0 version of the Coaster CMS product.
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
A Stored XSS vulnerability has been discovered in the v5.5.0 version of the Coaster CMS product.
- Record
CVE-2018-17876- 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
A Stored XSS vulnerability has been discovered in the v5.5.0 version of the Coaster CMS product.
- Record
CVE-2018-17876- Updated
- 2026-11-02
EUVDEUVD-2022-2939 No score
A Stored XSS vulnerability has been discovered in the v5.5.0 version of the Coaster CMS product.
- Record
EUVD-2022-2939- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-77cq-wgpf-g449
Coaster CMS Stored Cross-site Scripting vulnerability
A Stored Cross-site Scripting vulnerability has been discovered in the v5.5.0 version of the Coaster CMS product.
- Record
GHSA-77cq-wgpf-g449- 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
A Stored XSS vulnerability has been discovered in the v5.5.0 version of the Coaster CMS product.
- Record
CVE-2018-17876- 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
OSVGHSA-77cq-wgpf-g449
Coaster CMS Stored Cross-site Scripting vulnerability
A Stored Cross-site Scripting vulnerability has been discovered in the v5.5.0 version of the Coaster CMS product.
- Record
GHSA-77cq-wgpf-g449- 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
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
web-feet/coastercmsPackagist |
5.5.0 to 5.5.0 | None known |
web-feet/coastercmsPackagist |
Listed versions 5.5.0 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2018-17876 is a medium vulnerability (CVSS 6.1) in Web-feet Coaster Cms, published October 4, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.00%, the 62nd percentile. No source names a fixed version.