CVE-2020-13633 json
Fork CMS Cross-site Scripting Vulnerability
published 2020-05-27 6 y ago modified 2026-06-17 4 mo ago also GHSA-74gc-hf33-5353 , EUVD-2022-2913
- cvss
- 6.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 52%
- public exploits
- 0
- none known
Summary
Fork before 5.8.3 allows XSS via navigation_title or title.
Patch / fix
- packagist forkcms/forkcms 5.8.3
- fork-cms fork_cms 5.8.3
- github.com/forkcms/forkcms@b88f8a2 commit
- github.com/forkcms/forkcms#3093 pull request
Exploit prediction
0.68% chance of exploitation in the next 30 days, higher than 52% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
| GitHub | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | forkcms/forkcms | <5.8.3 |
5.8.3 |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/forkcms/forkcms/pull/3093
web, patch, third-party-advisory
-
github.com
/forkcms/forkcms/commit/b88f8a2033a4b9b4cbfce96c85691aafb021819d
web
-
nvd.nist.gov
/vuln/detail/CVE-2020-13633
advisory
-
github.com
/forkcms/forkcms
package
Sources
- CVE List CVE-2020-13633
- GitHub Advisory GHSA-74gc-hf33-5353
- NVD CVE-2020-13633
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.