VulnerabilityModified
CVE-2021-35955
Contao >=4.0.0 allows backend XSS via HTML attributes to an HTML field.
MEDIUM 4.8EPSS 0.56%
Does this matter?
Lower severity and a low EPSS score (0.56%). Track it; it rarely justifies an emergency change on its own.
Description
Contao >=4.0.0 allows backend XSS via HTML attributes to an HTML field. Fixed in 4.4.56, 4.9.18, 4.11.7.
- CVSS 3.1
- 4.8 MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 0.56% probability · 45th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- contao/contao
- Source
- cve@mitre.org
References
- https://contao.org/en/news/contao-4-9-16-and-4-11-5-are-available.htmlVendor Advisory
- https://github.com/contao/contao/security/advisories/GHSA-hr3h-x6gq-rqcpThird Party Advisory
- https://contao.org/en/news/contao-4-9-16-and-4-11-5-are-available.htmlVendor Advisory
- https://github.com/contao/contao/security/advisories/GHSA-hr3h-x6gq-rqcpThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.