CVE-2018-20028 json
Contao Information Disclosure via Access Control Flaws
published 2019-04-17 7 y ago modified 2026-06-17 4 mo ago also GHSA-q99w-j4mj-7hj8 , EUVD-2022-4927
- cvss
- 6.5
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.9%
- EPSS 0.9% chance of exploitation in 30 days, percentile 60%
- public exploits
- 0
- none known
Summary
Contao 3.x before 3.5.37, 4.4.x before 4.4.31 and 4.6.x before 4.6.11 has Incorrect Access Control.
Patch / fix
- packagist contao/contao 3.5.37, 4.4.31, 4.6.11
- contao contao_cms 3.5.37, 4.4.31, 4.6.11
Exploit prediction
0.91% chance of exploitation in the next 30 days, higher than 60% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 6.5 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 4.0 | AV:N/AC:L/Au:S/C:P/I:N/A:N |
| GitHub | 3.0 | 6.5 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | contao/contao | >=3.0.0, <3.5.37 >=4.6.0, <4.6.11 >=4.4.0, <4.4.31 |
3.5.37 4.6.11 4.4.31 |
Classification
- Weakness
-
- CWE-284 Improper Access Control
References
-
github.com
/contao/contao/commit/bbe5fe1d385cd1195670e2d6b972272133443c59
web
-
contao.org
/en/news.html
vendor-advisory
-
contao.org
/en/news/security-vulnerability-cve-2018-20028.html
web, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2018-20028
advisory
Sources
- CVE List CVE-2018-20028
- GitHub Advisory GHSA-q99w-j4mj-7hj8
- NVD CVE-2018-20028
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.