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Status published
Medium
CVE-2021-26539
Apostrophe Technologies sanitize-html before 2.3.1 does not properly handle internationalized...
Vulnerability Description
Apostrophe Technologies sanitize-html before 2.3.1 does not properly handle internationalized domain name (IDN) which could allow an attacker to bypass hostname whitelist validation set by the "allowedIframeHostnames" option.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
More from apostrophecms
View All →CVE-2021-26540
Apostrophe Technologies sanitize-html before 2.3.2 does not properly validate the...
Medium
5.3
CVE-2019-25225
`sanitize-html` prior to version 2.0.0-beta is vulnerable to Cross-site Scripting...
Medium
6.1
CVE-2016-1000237
sanitize-html before 1.4.3 has XSS....
Medium
6.1
CVE-2014-125128
'sanitize-html' prior to version 1.0.3 is vulnerable to Cross-site Scripting...
Medium
6.1
Affected Vendor
apostrophecms
View all reports →Affected Software
sanitize-html
Vulnerable Versions:
0
Timeline
Official Publish:
February 8th, 2021
Last Modified:
August 3rd, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.