Vulnerability Name:

CCN-255987

Published:2023-05-17
Updated:2023-05-17
Summary:WordPress Core is vulnerable to cross-site request forgery, caused by improper validation of user-supplied input by the wp_ajax_set_attachment_thumbnail AJAX function. By persuading an authenticated user to visit a malicious Web site, a remote attacker could send a malformed HTTP request to update the thumbnail image associated with existing attachments. An attacker could exploit this vulnerability to perform cross-site scripting attacks, Web cache poisoning, and other malicious activities.
CVSS v3 Severity:4.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N)
3.8 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): Low
Availibility (A): None
CVSS v2 Severity:4.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
Vulnerability Consequences:Gain Access
References:Source: CCN
Type: WordPress Web site
Changeset 55765

Source: XF
Type: UNKNOWN
wordpress-core-wpajaxset-csrf(255987)

Source: CCN
Type: Packet Storm Security [05-17-2023]
WordPress Core 6.2 XSS / CSRF / Directory Traversal

Vulnerable Configuration:Configuration CCN 1:
  • cpe:/a:wordpress:wordpress:6.1.1:*:*:*:*:*:*:*
  • OR cpe:/a:wordpress:wordpress:6.1:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
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