Lucene search
K
Database
Vendors
Products
Years
CVSS
Scanner
Agent Scanning
API Scanning
Manual Audit
Perimeter Scanner
Scanning
Projects
Email
Webhook
Plugins
Resources
Documents
Blog
Glossary
FAQ
Pricing
Contacts
About Us
Partners
Branding Guideline
cveMitreCVE-2021-26540
HistoryFeb 08, 2021 - 5:15 p.m.

CVE-2021-26540

2021-02-0817:15:13
mitre
web.nvd.nist.gov
58
4
cve-2021-26540
apostrophe technologies
sanitize-html
iframe
bypass
whitelist

CVSS2

5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:L/Au:N/C:N/I:P/A:N

CVSS3

5.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

AI Score

5.1

Confidence

High

EPSS

0.001

Percentile

49.3%

JSON

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 configurations

Nvd
Node
apostrophecmssanitize-htmlRange<2.3.2node.js
VendorProductVersionCPE
apostrophecmssanitize-html*cpe:2.3:a:apostrophecms:sanitize-html:*:*:*:*:*:node.js:*:*

Social References

More

Related

veracode 1
redhatcve 1
prion 1
cvelist 1
osv 2
github 1
nvd 1
debiancve 1
nodejs 1
redhat 2
veracode
veracode
Privilege Escalation
2021-02-09 02:21:19
redhatcve
redhatcve
CVE-2021-26540
2021-02-24 14:04:22
prion
prion
Design/Logic Flaw
2021-02-08 17:15:00
cvelist
cvelist
CVE-2021-26540
2021-02-08 16:16:07
osv
osv
Improper Input Validation in sanitize-html
2021-05-06 16:10:19
CVE-2021-26540
2021-02-08 17:15:13
github
github
Improper Input Validation in sanitize-html
2021-05-06 16:10:19
nvd
nvd
CVE-2021-26540
2021-02-08 17:15:13
debiancve
debiancve
CVE-2021-26540
2021-02-08 17:15:13
nodejs
nodejs
Improper Input Validation
2021-05-06 16:14:59
redhat
redhat
(RHSA-2021:3759) Moderate: OpenShift Container Platform 4.9.0 bug fix and security update
2021-10-18 17:16:43
(RHSA-2021:2438) Moderate: OpenShift Container Platform 4.8.2 bug fix and security update
2021-07-27 22:10:52

CVSS2

5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:L/Au:N/C:N/I:P/A:N

CVSS3

5.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

AI Score

5.1

Confidence

High

EPSS

0.001

Percentile

49.3%

JSON
Related for CVE-2021-26540
veracode1redhatcve1prion1cvelist1osv2github1nvd1debiancve1nodejs1redhat2