stellarwp GiveWP Plugin up to 4.16.0 on WordPress Shortcode parseAttributes blockId cross site scripting

Summaryinfo

A vulnerability categorized as problematic has been discovered in stellarwp GiveWP Plugin up to 4.16.0 on WordPress. Affected is the function CampaignCommentsShortcode::parseAttributes of the component Shortcode Handler. Such manipulation of the argument blockId leads to cross site scripting. This vulnerability is referenced as CVE-2026-13246. It is possible to launch the attack remotely. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in stellarwp GiveWP Plugin up to 4.16.0 on WordPress. It has been rated as problematic. Affected by this issue is the function CampaignCommentsShortcode::parseAttributes of the component Shortcode Handler. The manipulation of the argument blockId 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 GiveWP – Donation Plugin and Fundraising Platform plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'block_id' (and other) shortcode attributes of the 'givewp_campaign_comments' shortcode in versions up to, and including, 4.16.0. This is due to insufficient input sanitization and output escaping on user supplied attributes in CampaignCommentsShortcode::parseAttributes() and BlockRenderController::render(), where the blockId value is interpolated directly into a single-quoted HTML attribute without esc_attr(). This makes it possible for authenticated attackers, with author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The weakness was published by AmonRa. The advisory is available at wordfence.com. This vulnerability is handled as CVE-2026-13246 since 06/24/2026. The exploitation is known to be easy. The attack may be launched remotely. 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 4.16.0 eliminates this vulnerability.

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Productinfo

Type

• WordPress Plugin

Vendor

• stellarwp

Name

• GiveWP Plugin

Version

• 4.0
• 4.1
• 4.2
• 4.3
• 4.4
• 4.5
• 4.6
• 4.7
• 4.8
• 4.9
• 4.10
• 4.11
• 4.12
• 4.13
• 4.14
• 4.15
• 4.16.0

CPE 2.3info

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CPE 2.2info

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