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cveWPScanCVE-2021-24159
HistoryApr 05, 2021 - 7:15 p.m.

CVE-2021-24159

2021-04-0519:15:15
CWE-352
WPScan
web.nvd.nist.gov
26
cve-2021-24159
sanitization
nonce protection
custom css
javascript injection
wordpress plugin

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.5

Confidence

High

EPSS

0.001

Percentile

41.1%

Due to the lack of sanitization and lack of nonce protection on the custom CSS feature, an attacker could craft a request to inject malicious JavaScript on a site using the Contact Form 7 Style WordPress plugin through 3.1.9. If an attacker successfully tricked a site’s administrator into clicking a link or attachment, then the request could be sent and the CSS settings would be successfully updated to include malicious JavaScript.

Affected configurations

Nvd
Vulners
Node
rocklobstercontact_form_7Range≀3.1.9wordpress
VendorProductVersionCPE
rocklobstercontact_form_7*cpe:2.3:a:rocklobster:contact_form_7:*:*:*:*:*:wordpress:*:*

CNA Affected

[
  {
    "product": "Contact Form 7 Style",
    "vendor": "Unknown",
    "versions": [
      {
        "lessThanOrEqual": "3.1.9",
        "status": "affected",
        "version": "3.1.9",
        "versionType": "custom"
      }
    ]
  }
]

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.5

Confidence

High

EPSS

0.001

Percentile

41.1%

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