5.3

CVE-2021-26540

Exploit

EPSS 0.29%
Published 08.02.2021 17:15:13
Last modified 21.11.2024 05:56:26
Source cve@mitre.org
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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".

Affected products Warnungen 0 Metrics 3 CWE 0 References 6

Data is provided by the National Vulnerability Database (NVD)

Apostrophecms ≫ Sanitize-html SwPlatformnode.js Version < 2.3.2

Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.

EPSS Metriken
Type	Source	Score	Percentile
EPSS	FIRST.org	0.29%	0.493

CVSS Metriken
Source	Base Score	Exploit Score	Impact Score	Vector string
nvd@nist.gov	5.3	3.9	1.4	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
nvd@nist.gov	5	10	2.9	AV:N/AC:L/Au:N/C:N/I:P/A:N

https://advisory.checkmarx.net/advisory/CX-2021-4309

Patch

Third Party Advisory

Exploit

https://github.com/apostrophecms/sanitize-html/blob/main/CHANGELOG.md#232-2021-01-26

Third Party Advisory

Release Notes

https://github.com/apostrophecms/sanitize-html/pull/460

Patch

Third Party Advisory

https://nvd.nist.gov/vuln/detail/CVE-2021-26540

CVE Source (NVD)

https://cveawg.mitre.org/api/cve/CVE-2021-26540

CVE Source (JSON)

https://euvd.enisa.europa.eu/vulnerability/CVE-2021-26540

EUVD