CVE-2022-24899 json
Cross site scripting via canonical tag
published 2022-05-05 4 y ago modified 2026-06-17 4 mo ago also GHSA-m8x6-6r63-qvj2 , EUVD-2022-4528
- cvss
- 7.2
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 4.5%
- EPSS 4.5% chance of exploitation in 30 days, percentile 91%
- public exploits
- 0
- none known, plus a Nuclei check
Summary
Contao is a powerful open source CMS that allows you to create professional websites and scalable web applications. In versions of Contao prior to 4.13.3 it is possible to inject code into the canonical tag. As a workaround users may disable canonical tags in the root page settings.
Patch / fix
- packagist contao/core-bundle 4.13.3
- packagist contao/contao 4.13.3
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 18 mo ago
Exploit prediction
4.48% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Nuclei template Contao <4.13.3 - Cross-Site Scripting nuclei detection template
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.2 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N |
| 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 | 7.2 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | contao/core-bundle | >=4.13.0, <4.13.3 |
4.13.3 |
| packagist | contao/contao | >=4.13.0, <4.13.3 |
4.13.3 |
Affected products
- contao contao
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/contao/contao/commit/199206849a87ddd0fa5cf674eb3c58292fd8366c
web, patch, third-party-advisory
-
contao.org
/en/security-advisories/cross-site-scripting-via-canonical-url.html
web, vendor-advisory
-
github.com
/contao/contao/security/advisories/GHSA-m8x6-6r63-qvj2
web, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2022-24899
advisory
-
github.com
/FriendsOfPHP/security-advisories/blob/master/contao/contao/CVE-2022-24899.yaml
web
-
github.com
/FriendsOfPHP/security-advisories/blob/master/contao/core-bundle/CVE-2022-24899.yaml
web
-
github.com
/contao/contao
package
Sources
- CVE List CVE-2022-24899
- GitHub Advisory GHSA-m8x6-6r63-qvj2
- NVD CVE-2022-24899
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.