CVE-2026-13733

MEDIUM

Download Manager <= 3.3.60 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'no_data_msg' Shortcode Attribute

Title source: cna
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2026-13733. PoCs published by HermesNA-1.

AI-analyzed exploit summary This repository contains an auto-generated stub module for CVE-2026-13733, a stored XSS vulnerability in the WordPress Download Manager plugin (versions ≤3.3.60). The code includes metadata and a placeholder structure but lacks functional exploit implementation, referencing only the vulnerability details and patch links.

Description

The Download Manager plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'no_data_msg' Shortcode Attribute in all versions up to, and including, 3.3.60 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. Although wp_kses_post is applied to post content on save, it only strips HTML tokens and does not neutralize C-style escape sequences embedded within shortcode attribute values, meaning contributors can craft a payload that survives the kses filter and is silently reconstructed into a raw script tag at render time.

Exploits (1)

github STUB 1 stars
by HermesNA-1 · pythonpoc
https://github.com/HermesNA-1/SnakeSploit/tree/main/data/modules_generated/cve-2026-13733_the_download_manager.py

This repository contains an auto-generated stub module for CVE-2026-13733, a stored XSS vulnerability in the WordPress Download Manager plugin (versions ≤3.3.60). The code includes metadata and a placeholder structure but lacks functional exploit implementation, referencing only the vulnerability details and patch links.

Classification
Stub 99%
Attack Type
Xss
Complexity
Moderate
Reliability
Theoretical
Target: WordPress Download Manager plugin ≤3.3.60
No auth needed
Prerequisites: WordPress site with vulnerable Download Manager plugin installed · Ability to inject malicious shortcode (e.g., via post/page editor or other input vectors)
mistral-large-3 · analyzed Jul 09, 2026 Full analysis →

Scores

CVSS v3 6.4
EPSS 0.0021
EPSS Percentile 10.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-79
Status published
Products (1)
codename065/Download Manager < 3.3.60
Published Jul 01, 2026
Tracked Since Jul 01, 2026