CVE-2021-35955

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 v3.0 4.8 MEDIUM
CVSS v2.0 3.5 LOW

4.8^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 1.7 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

3.5^/10

CVSS v2.0 : LOW

Vector : AV:N/AC:M/Au:S/C:N/I:P/A:N

Exploitability : 6.8 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication SINGLE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
https://contao.org/en/news/contao-4-9-16-and-4-11-5-are-available.html	Vendor Advisory
https://github.com/contao/contao/security/advisories/GHSA-hr3h-x6gq-rqcp	Third Party Advisory

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:contao:contao::::::::
	cpe:2.3:a:contao:contao::::::::
	cpe:2.3:a:contao:contao::::::::

Information

Published : 2021-08-12 08:15

Updated : 2021-08-20 12:51

NVD link : CVE-2021-35955

Mitre link : CVE-2021-35955

JSON object : View

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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Products Affected

contao

contao

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