CVE-2026-39620
WordPress Appointment theme <= 3.5.5 - Cross Site Request Forgery (CSRF) to Arbitrary File Upload vulnerability
Description
Cross-Site Request Forgery (CSRF) vulnerability in priyanshumittal Appointment appointment allows Upload a Web Shell to a Web Server.This issue affects Appointment: from n/a through <= 3.5.5.
INFO
Published Date :
April 8, 2026, 9:16 a.m.
Last Modified :
July 24, 2026, 9:10 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | CRITICAL | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | ||||
| CVSS 3.1 | CRITICAL | [email protected] |
Solution
- Implement anti-CSRF tokens in forms.
- Validate request origin or referer headers.
- Update to a version later than 3.5.5.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-39620.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-39620 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-39620
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-39620 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-39620 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Translated by [email protected]
Jul. 24, 2026
Action Type Old Value New Value Added Translation Title: tema para WordPress Appointment, Description: Vulnerabilidad de falsificación de petición en sitios cruzados (CSRF) en priyanshumittal Appointment appointment permite subir un shell web a un servidor web. Este problema afecta a Appointment: desde n/a hasta <= 3.5.5. -
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'priyanshumittal', 'product': 'Appointment', 'versions': [{'status': 'affected', 'version': '0', 'versionType': 'custom', 'lessThanOrEqual': '3.5.5'}], 'packageName': 'appointment', 'collectionURL': 'https://wordpress.org/plugins', 'defaultStatus': 'unaffected'}] Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-39620', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-04-14T14:14:42.583045Z'} -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Apr. 14, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H -
New CVE Received by [email protected]
Apr. 08, 2026
Action Type Old Value New Value Added Description Cross-Site Request Forgery (CSRF) vulnerability in priyanshumittal Appointment appointment allows Upload a Web Shell to a Web Server.This issue affects Appointment: from n/a through <= 3.5.5. Added CWE CWE-352 Added Reference https://patchstack.com/database/Wordpress/Theme/appointment/vulnerability/wordpress-appointment-theme-3-5-5-cross-site-request-forgery-csrf-to-arbitrary-file-upload-vulnerability?_s_id=cve