publishpress Schedule Post Changes with PublishPress Future Plugin Shortcode esc_html cross site scripting

Summaryinfo

A vulnerability described as problematic has been identified in publishpress Schedule Post Changes with PublishPress Future Plugin up to 4.10.0 on WordPress. Affected by this vulnerability is the function esc_html of the component Shortcode Handler. The manipulation results in cross site scripting. This vulnerability is identified as CVE-2026-5247. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in publishpress Schedule Post Changes with PublishPress Future Plugin up to 4.10.0 on WordPress. It has been classified as problematic. Affected is the function esc_html of the component Shortcode Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as 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. This is going to have an impact on integrity. CVE summarizes:

The Schedule Post Changes With PublishPress Future plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'wrapper' attribute of the [futureaction] shortcode in all versions up to, and including, 4.10.0. This is due to insufficient input sanitization on the wrapper attribute. The plugin uses esc_html() to escape the value, but esc_html() only encodes HTML entities and does not prevent attribute injection when the value is used as an HTML tag name in a sprintf() call. An attacker can inject event handler attributes via spaces in the wrapper value. This makes it possible for authenticated attackers, with administrator-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Since it is also possible for administrators to make this functionality available to lower-privileged users, this introduces the possibility of abuse by contributors.

The weakness was released by Djaidja Moundjid. The advisory is available at wordfence.com. This vulnerability is traded as CVE-2026-5247 since 03/31/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation needs additional levels of successful authentication. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

Upgrading to version 4.9.4 eliminates this vulnerability.

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Productinfo

Type

• WordPress Plugin

Vendor

• publishpress

Name

• Schedule Post Changes with PublishPress Future Plugin

Version

• 4.0
• 4.1
• 4.2
• 4.3
• 4.4
• 4.5
• 4.6
• 4.7
• 4.8
• 4.9
• 4.10.0

CPE 2.3info

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CPE 2.2info

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