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WordfenceVULNRICHMENT:CVE-2024-3558

HistoryJun 20, 2024 - 2:08 a.m.

CVE-2024-3558 Custom Field Suite <= 2.6.7 - Authenticated (Contributor+) Stored Cross-Site Scripting via cfs[post_title]

2024-06-2002:08:25

Wordfence

github.com

cve-2024-3558

custom field suite

wordpress

authenticated

stored cross-site scripting

contributor

input sanitization

output escaping

CVSS3

6.4

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

AI Score

5.8

Confidence

High

EPSS

0.001

Percentile

34.3%

SSVC

Exploitation

none

Automatable

yes

Technical Impact

partial

JSON

The Custom Field Suite plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the the ‘cfs[post_title]’ parameter versions up to, and including, 2.6.7 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

ADP Affected

[
  {
    "cpes": [
      "cpe:2.3:a:custom_field_suite_project:custom_field_suite:-:*:*:*:*:*:*:*"
    ],
    "vendor": "custom_field_suite_project",
    "product": "custom_field_suite",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "versionType": "custom",
        "lessThanOrEqual": "2.6.7"
      }
    ],
    "defaultStatus": "unknown"
  }
]

References

core.trac.wordpress.org/ticket/56655

en-gb.wordpress.org/plugins/custom-field-suite/

github.com/mgibbs189/custom-field-suite/blob/963dfcede18ff4ad697498556d9058db07d74fa3/includes/api.php#L282

github.com/mgibbs189/custom-field-suite/blob/963dfcede18ff4ad697498556d9058db07d74fa3/includes/field_group.php#L20

github.com/mgibbs189/custom-field-suite/blob/963dfcede18ff4ad697498556d9058db07d74fa3/includes/form.php#L64

github.com/WordPress/WordPress/blob/22d95abc55824e83904dc0fef290464b6bec7708/wp-admin/includes/template.php#L1384

mgibbs189.github.io/custom-field-suite/

www.wordfence.com/threat-intel/vulnerabilities/id/8e4dc6fd-4bd5-4ed1-ade0-cf2f8831fac3?source=cve

CVSS3

6.4

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

AI Score

5.8

Confidence

High

EPSS

0.001

Percentile

34.3%

SSVC

Exploitation

none

Automatable

yes

Technical Impact

partial

JSON

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