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Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2021-26540

Apostrophe Technologies sanitize-html before 2.3.2 does not properly validate the hostnames set by the "allowedIframeHostnames" option when the "allowIframeRelativeUrls" is set to true, which allows attackers to bypass hostname whitelist for iframe element, related using an src value that starts with "/\\example.com".

Exploit prediction scoring system (EPSS) score

EPSS Score 0.003

EPSS Ranking 52.0%

CVSS Severity

CVSS v3 Score 5.3

CVSS v2 Score 5.0

References

Products affected by CVE-2021-26540

Apostrophecms » Sanitize-Html » Version: 0.1.0

cpe:2.3:a:apostrophecms:sanitize-html:0.1.0
Apostrophecms » Sanitize-Html » Version: 0.1.1

cpe:2.3:a:apostrophecms:sanitize-html:0.1.1
Apostrophecms » Sanitize-Html » Version: 0.1.2

cpe:2.3:a:apostrophecms:sanitize-html:0.1.2
Apostrophecms » Sanitize-Html » Version: 0.1.3

cpe:2.3:a:apostrophecms:sanitize-html:0.1.3
Apostrophecms » Sanitize-Html » Version: 0.1.4

cpe:2.3:a:apostrophecms:sanitize-html:0.1.4
Apostrophecms » Sanitize-Html » Version: 1.0.0

cpe:2.3:a:apostrophecms:sanitize-html:1.0.0
Apostrophecms » Sanitize-Html » Version: 1.0.1

cpe:2.3:a:apostrophecms:sanitize-html:1.0.1
Apostrophecms » Sanitize-Html » Version: 1.0.2

cpe:2.3:a:apostrophecms:sanitize-html:1.0.2
Apostrophecms » Sanitize-Html » Version: 1.0.3

cpe:2.3:a:apostrophecms:sanitize-html:1.0.3
Apostrophecms » Sanitize-Html » Version: 1.1.0

cpe:2.3:a:apostrophecms:sanitize-html:1.1.0
Apostrophecms » Sanitize-Html » Version: 1.1.1

cpe:2.3:a:apostrophecms:sanitize-html:1.1.1
Apostrophecms » Sanitize-Html » Version: 1.1.2

cpe:2.3:a:apostrophecms:sanitize-html:1.1.2
Apostrophecms » Sanitize-Html » Version: 1.1.3

cpe:2.3:a:apostrophecms:sanitize-html:1.1.3
Apostrophecms » Sanitize-Html » Version: 1.1.4

cpe:2.3:a:apostrophecms:sanitize-html:1.1.4
Apostrophecms » Sanitize-Html » Version: 1.1.5

cpe:2.3:a:apostrophecms:sanitize-html:1.1.5
Apostrophecms » Sanitize-Html » Version: 1.1.7

cpe:2.3:a:apostrophecms:sanitize-html:1.1.7
Apostrophecms » Sanitize-Html » Version: 1.1.8

cpe:2.3:a:apostrophecms:sanitize-html:1.1.8
Apostrophecms » Sanitize-Html » Version: 1.10.0

cpe:2.3:a:apostrophecms:sanitize-html:1.10.0
Apostrophecms » Sanitize-Html » Version: 1.10.1

cpe:2.3:a:apostrophecms:sanitize-html:1.10.1
Apostrophecms » Sanitize-Html » Version: 1.11.0

cpe:2.3:a:apostrophecms:sanitize-html:1.11.0
Apostrophecms » Sanitize-Html » Version: 1.11.1

cpe:2.3:a:apostrophecms:sanitize-html:1.11.1
Apostrophecms » Sanitize-Html » Version: 1.11.2

cpe:2.3:a:apostrophecms:sanitize-html:1.11.2
Apostrophecms » Sanitize-Html » Version: 1.11.3

cpe:2.3:a:apostrophecms:sanitize-html:1.11.3
Apostrophecms » Sanitize-Html » Version: 1.11.4

cpe:2.3:a:apostrophecms:sanitize-html:1.11.4
Apostrophecms » Sanitize-Html » Version: 1.12.0

cpe:2.3:a:apostrophecms:sanitize-html:1.12.0
Apostrophecms » Sanitize-Html » Version: 1.13.0

cpe:2.3:a:apostrophecms:sanitize-html:1.13.0
Apostrophecms » Sanitize-Html » Version: 1.14.0

cpe:2.3:a:apostrophecms:sanitize-html:1.14.0
Apostrophecms » Sanitize-Html » Version: 1.14.1

cpe:2.3:a:apostrophecms:sanitize-html:1.14.1
Apostrophecms » Sanitize-Html » Version: 1.14.2

cpe:2.3:a:apostrophecms:sanitize-html:1.14.2
Apostrophecms » Sanitize-Html » Version: 1.14.3

cpe:2.3:a:apostrophecms:sanitize-html:1.14.3
Apostrophecms » Sanitize-Html » Version: 1.15.0

cpe:2.3:a:apostrophecms:sanitize-html:1.15.0
Apostrophecms » Sanitize-Html » Version: 1.16.0

cpe:2.3:a:apostrophecms:sanitize-html:1.16.0
Apostrophecms » Sanitize-Html » Version: 1.16.1

cpe:2.3:a:apostrophecms:sanitize-html:1.16.1
Apostrophecms » Sanitize-Html » Version: 1.16.2

cpe:2.3:a:apostrophecms:sanitize-html:1.16.2
Apostrophecms » Sanitize-Html » Version: 1.16.3

cpe:2.3:a:apostrophecms:sanitize-html:1.16.3
Apostrophecms » Sanitize-Html » Version: 1.17.0

cpe:2.3:a:apostrophecms:sanitize-html:1.17.0
Apostrophecms » Sanitize-Html » Version: 1.18.0

cpe:2.3:a:apostrophecms:sanitize-html:1.18.0
Apostrophecms » Sanitize-Html » Version: 1.18.1

cpe:2.3:a:apostrophecms:sanitize-html:1.18.1
Apostrophecms » Sanitize-Html » Version: 1.18.2

cpe:2.3:a:apostrophecms:sanitize-html:1.18.2
Apostrophecms » Sanitize-Html » Version: 1.18.3

cpe:2.3:a:apostrophecms:sanitize-html:1.18.3
Apostrophecms » Sanitize-Html » Version: 1.18.4

cpe:2.3:a:apostrophecms:sanitize-html:1.18.4
Apostrophecms » Sanitize-Html » Version: 1.18.5

cpe:2.3:a:apostrophecms:sanitize-html:1.18.5
Apostrophecms » Sanitize-Html » Version: 1.19.0

cpe:2.3:a:apostrophecms:sanitize-html:1.19.0
Apostrophecms » Sanitize-Html » Version: 1.19.1

cpe:2.3:a:apostrophecms:sanitize-html:1.19.1
Apostrophecms » Sanitize-Html » Version: 1.19.2

cpe:2.3:a:apostrophecms:sanitize-html:1.19.2
Apostrophecms » Sanitize-Html » Version: 1.19.3

cpe:2.3:a:apostrophecms:sanitize-html:1.19.3
Apostrophecms » Sanitize-Html » Version: 1.2.0

cpe:2.3:a:apostrophecms:sanitize-html:1.2.0
Apostrophecms » Sanitize-Html » Version: 1.2.1

cpe:2.3:a:apostrophecms:sanitize-html:1.2.1
Apostrophecms » Sanitize-Html » Version: 1.2.2

cpe:2.3:a:apostrophecms:sanitize-html:1.2.2
Apostrophecms » Sanitize-Html » Version: 1.2.3

cpe:2.3:a:apostrophecms:sanitize-html:1.2.3
Apostrophecms » Sanitize-Html » Version: 1.20.0

cpe:2.3:a:apostrophecms:sanitize-html:1.20.0
Apostrophecms » Sanitize-Html » Version: 1.20.1

cpe:2.3:a:apostrophecms:sanitize-html:1.20.1
Apostrophecms » Sanitize-Html » Version: 1.21.0

cpe:2.3:a:apostrophecms:sanitize-html:1.21.0
Apostrophecms » Sanitize-Html » Version: 1.21.1

cpe:2.3:a:apostrophecms:sanitize-html:1.21.1
Apostrophecms » Sanitize-Html » Version: 1.22.0

cpe:2.3:a:apostrophecms:sanitize-html:1.22.0
Apostrophecms » Sanitize-Html » Version: 1.27.4

cpe:2.3:a:apostrophecms:sanitize-html:1.27.4
Apostrophecms » Sanitize-Html » Version: 1.3.0

cpe:2.3:a:apostrophecms:sanitize-html:1.3.0
Apostrophecms » Sanitize-Html » Version: 1.4.1

cpe:2.3:a:apostrophecms:sanitize-html:1.4.1
Apostrophecms » Sanitize-Html » Version: 1.4.2

cpe:2.3:a:apostrophecms:sanitize-html:1.4.2
Apostrophecms » Sanitize-Html » Version: 1.4.3

cpe:2.3:a:apostrophecms:sanitize-html:1.4.3
Apostrophecms » Sanitize-Html » Version: 1.5.0

cpe:2.3:a:apostrophecms:sanitize-html:1.5.0
Apostrophecms » Sanitize-Html » Version: 1.5.1

cpe:2.3:a:apostrophecms:sanitize-html:1.5.1
Apostrophecms » Sanitize-Html » Version: 1.5.2

cpe:2.3:a:apostrophecms:sanitize-html:1.5.2
Apostrophecms » Sanitize-Html » Version: 1.5.3

cpe:2.3:a:apostrophecms:sanitize-html:1.5.3
Apostrophecms » Sanitize-Html » Version: 1.6.0

cpe:2.3:a:apostrophecms:sanitize-html:1.6.0
Apostrophecms » Sanitize-Html » Version: 1.6.1

cpe:2.3:a:apostrophecms:sanitize-html:1.6.1
Apostrophecms » Sanitize-Html » Version: 1.7.0

cpe:2.3:a:apostrophecms:sanitize-html:1.7.0
Apostrophecms » Sanitize-Html » Version: 1.7.1

cpe:2.3:a:apostrophecms:sanitize-html:1.7.1
Apostrophecms » Sanitize-Html » Version: 1.7.2

cpe:2.3:a:apostrophecms:sanitize-html:1.7.2
Apostrophecms » Sanitize-Html » Version: 1.8.0

cpe:2.3:a:apostrophecms:sanitize-html:1.8.0
Apostrophecms » Sanitize-Html » Version: 1.9.0

cpe:2.3:a:apostrophecms:sanitize-html:1.9.0
Apostrophecms » Sanitize-Html » Version: 2.0.0

cpe:2.3:a:apostrophecms:sanitize-html:2.0.0
Apostrophecms » Sanitize-Html » Version: 2.1.0

cpe:2.3:a:apostrophecms:sanitize-html:2.1.0
Apostrophecms » Sanitize-Html » Version: 2.1.1

cpe:2.3:a:apostrophecms:sanitize-html:2.1.1
Apostrophecms » Sanitize-Html » Version: 2.1.2

cpe:2.3:a:apostrophecms:sanitize-html:2.1.2
Apostrophecms » Sanitize-Html » Version: 2.2.0

cpe:2.3:a:apostrophecms:sanitize-html:2.2.0
Apostrophecms » Sanitize-Html » Version: 2.3.0

cpe:2.3:a:apostrophecms:sanitize-html:2.3.0
Apostrophecms » Sanitize-Html » Version: 2.3.1

cpe:2.3:a:apostrophecms:sanitize-html:2.3.1

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2021-26540

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