CVE-2018-20682 json
Fork CMS XSS Vulnerability
published 2019-01-09 7 y ago modified 2026-06-17 4 mo ago also GHSA-xcmj-xjhg-wvhq , EUVD-2022-5767
- cvss
- 5.4
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 46%
- public exploits
- 0
- none known
Summary
Fork CMS 5.0.6 allows stored XSS via the private/en/settings facebook_admin_ids parameter (aka "Admin ids" input in the Facebook section).
Exploit prediction
0.56% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- netsparker.com https://www.netsparker.com/web-applications-advisories/ns-18-032-stored-cross-site-scripting-in-forkcms/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 5.4 | CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 3.5 | AV:N/AC:M/Au:S/C:N/I:P/A:N |
| GitHub | 3.0 | 5.4 | CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | forkcms/forkcms | <=5.0.6 |
no fix listed |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
netsparker.com
/web-applications-advisories/ns-18-032-stored-cross-site-scripting-in-forkcms/
exploit, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2018-20682
advisory
-
github.com
/forkcms/forkcms
package
-
netsparker.com
/web-applications-advisories/ns-18-032-stored-cross-site-scripting-in-forkcms
web
Sources
- CVE List CVE-2018-20682
- GitHub Advisory GHSA-xcmj-xjhg-wvhq
- NVD CVE-2018-20682
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.