CVE-2024-28234 json
Contao has insufficient BBCode sanitizer
published 2024-04-09 2 y ago modified 2026-09-10 1 mo ago also EUVD-2024-1227 , GHSA-j55w-hjpj-825g
- cvss
- 4.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 47%
- public exploits
- 0
- none known
Summary
Contao is an open source content management system. Starting in version 2.0.0 and prior to versions 4.13.40 and 5.3.4, it is possible to inject CSS styles via BBCode in comments. Installations are only affected if BBCode is enabled. Contao versions 4.13.40 and 5.3.4 have a patch for this issue. As a workaround, disable BBCode for comments.
Patch / fix
- packagist contao/comments-bundle 4.13.40, 5.3.4
- contao contao 4.13.40, 5.3.4
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.57% chance of exploitation in the next 30 days, higher than 47% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N |
| GitHub | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N |
| NVD | 3.1 | 4.7 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | contao/comments-bundle | >=2.0.0, <4.13.40 >=5.0.0-RC1, <5.3.4 |
4.13.40 5.3.4 |
Affected products
- contao contao
Classification
- Weakness
-
- CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component
References
-
github.com
/contao/contao/commit/55b995d8d35da0d36bc6a22c53fe6423ab0c4ae2
web, patch
-
github.com
/contao/contao/commit/6d42e667177c972ae7c219645593c262d7764ce2
web, patch
-
github.com
/contao/contao/security/advisories/GHSA-j55w-hjpj-825g
web, vendor-advisory
-
contao.org
/en/security-advisories/insufficient-bbcode-sanitization
web, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2024-28234
advisory
-
github.com
/contao/contao
package
Sources
- CVE List CVE-2024-28234
- GitHub Advisory GHSA-j55w-hjpj-825g
- NVD CVE-2024-28234
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.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.