CVE-2023-4779

2023-09-0607:15:09

[email protected]

web.nvd.nist.gov

cve-2023-4779

user submitted posts

wordpress

stored xss

usp_gallery

input sanitization

output escaping

web scripts

6.4 Medium

CVSS3

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

5.2 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

14.2%

JSON

The User Submitted Posts plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin’s [usp_gallery] shortcode in versions up to, and including, 20230811 due to insufficient input sanitization and output escaping on user supplied attributes like ‘before’. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected configurations

Vulners

NVD

Node

specialkuser_submitted_posts_–_enable_users_to_submit_posts_from_the_front_endRange≤20230811

CPENameOperatorVersion
plugin-planet:user_submitted_postsplugin-planet user submitted postsle20230811

CPE	Name	Operator	Version
plugin-planet:user_submitted_posts	plugin-planet user submitted posts	le	20230811

CNA Affected

[
  {
    "vendor": "specialk",
    "product": "User Submitted Posts – Enable Users to Submit Posts from the Front End",
    "versions": [
      {
        "version": "*",
        "status": "affected",
        "lessThanOrEqual": "20230811",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  }
]