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cve[email protected]CVE-2021-24153
HistoryApr 05, 2021 - 7:15 p.m.

CVE-2021-24153

2021-04-0519:15:14
CWE-79
web.nvd.nist.gov
23
cve-2021-24153
stored xss
yoast seo
wordpress plugin
security vulnerability
bypass vulnerability

3.5 Low

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:S/C:N/I:P/A:N

5.4 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

0.002 Low

EPSS

Percentile

54.3%

A Stored Cross-Site Scripting vulnerability was discovered in the Yoast SEO WordPress plugin before 3.4.1, which had built-in blacklist filters which were blacklisting Parenthesis as well as several functions such as alert but bypasses were found.

Affected configurations

Vulners
NVD
Node
yoastyoast_seoRange<3.4.1
VendorProductVersionCPE
yoastyoast_seo*cpe:2.3:a:yoast:yoast_seo:*:*:*:*:*:*:*:*

CNA Affected

[
  {
    "product": "Yoast SEO",
    "vendor": "Unknown",
    "versions": [
      {
        "lessThan": "3.4.1",
        "status": "affected",
        "version": "3.4.1",
        "versionType": "custom"
      }
    ]
  }
]

3.5 Low

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:S/C:N/I:P/A:N

5.4 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

0.002 Low

EPSS

Percentile

54.3%

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