Download Manager Plugin up to 3.3.61 Shortcode note_before/note_after cross site scripting

Summaryinfo

A vulnerability labeled as problematic has been found in Download Manager Plugin up to 3.3.61. Affected is an unknown function of the component Shortcode Handler. Such manipulation of the argument note_before/note_after leads to cross site scripting. This vulnerability is documented as CVE-2026-14343. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Download Manager Plugin up to 3.3.61. Affected by this issue is an unknown part of the component Shortcode Handler. The manipulation of the argument note_before/note_after with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity. CVE summarizes:

The Download Manager plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'note_before' and 'note_after' Shortcode Attributes in all versions up to, and including, 3.3.61 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. Because wp_kses_post filters post content on save for users without unfiltered_html, only kses-allowed tag and attribute payloads that survive save-time filtering will reach the unescaped sink; however, the sink itself remains unsafe and such payloads can still execute in the browser when a user renders the shortcode.

The advisory is shared for download at wordfence.com. This vulnerability is handled as CVE-2026-14343 since 07/01/2026. The exploitation is known to be easy. The attack may be launched remotely. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• WordPress Plugin

Name

• Download Manager Plugin

Version

• 3.3.0
• 3.3.1
• 3.3.2
• 3.3.3
• 3.3.4
• 3.3.5
• 3.3.6
• 3.3.7
• 3.3.8
• 3.3.9
• 3.3.10
• 3.3.11
• 3.3.12
• 3.3.13
• 3.3.14
• 3.3.15
• 3.3.16
• 3.3.17
• 3.3.18
• 3.3.19
• 3.3.20
• 3.3.21
• 3.3.22
• 3.3.23
• 3.3.24
• 3.3.25
• 3.3.26
• 3.3.27
• 3.3.28
• 3.3.29
• 3.3.30
• 3.3.31
• 3.3.32
• 3.3.33
• 3.3.34
• 3.3.35
• 3.3.36
• 3.3.37
• 3.3.38
• 3.3.39
• 3.3.40
• 3.3.41
• 3.3.42
• 3.3.43
• 3.3.44
• 3.3.45
• 3.3.46
• 3.3.47
• 3.3.48
• 3.3.49
• 3.3.50
• 3.3.51
• 3.3.52
• 3.3.53
• 3.3.54
• 3.3.55
• 3.3.56
• 3.3.57
• 3.3.58
• 3.3.59
• 3.3.60
• 3.3.61

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Once again VulDB remains the best source for vulnerability data.

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