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5.3
CVSSv3

CVE-2021-26540

Published: 08/02/2021 Updated: 01/04/2021
CVSS v2 Base Score: 5 | Impact Score: 2.9 | Exploitability Score: 10
CVSS v3 Base Score: 5.3 | Impact Score: 1.4 | Exploitability Score: 3.9
VMScore: 445
Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N
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Vulnerability Summary

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

Vulnerability Trend

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apostrophecms sanitize-html

References

NVD-CWE-noinfohttps://advisory.checkmarx.net/advisory/CX-2021-4309https://github.com/apostrophecms/sanitize-html/blob/main/CHANGELOG.md#232-2021-01-26https://github.com/apostrophecms/sanitize-html/pull/460https://nvd.nist.gov
CVSSv3
CVSSv2
CVSSv3
VMScore
Recommendations:
validationCVE-2024-34413CVE-2024-34089CVE-2024-33408localSQLCVE-2024-0402CVE-2024-33910CVE-2024-31848
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