Vulnerability in Apostrophecms Sanitize-html
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 f…
EPSS: 0.018 (75.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.
Affected products
- Apostrophecms Sanitize-html
- N/a — versions n/a
References
- cve@mitre.org (Third Party Advisory, x_refsource_MISC, Release Notes)
- cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Exploit, Patch, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-26540?
- CVE-2021-26540 is a medium-severity vulnerability in Apostrophecms Sanitize-html. CVSS score: 5.3/10. Published 2021-02-08.
- How severe is CVE-2021-26540?
- Medium severity. CVSS v3 base score is 5.3 out of 10.