GiveWP <= 4.16.0 - Authenticated (Author+) Stored Cross-Site Scripting via 'block_id' Shortcode Attribute

Summary

CVE	CVE-2026-13246
State	PUBLISHED
Assigner	Wordfence
Source Priority	CVE Program / NVD first with legacy fallback
Published	2026-07-01 05:16:18 UTC
Updated	2026-07-01 13:56:17 UTC
Description	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.

Risk And Classification

Primary CVSS: v3.1 6.4 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

EPSS: 0.002410000 probability, percentile 0.152020000 (date 2026-07-01)

Problem Types: CWE-79 | CWE-79 CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Version	Source	Type	Score	Severity	Vector
3.1	[email protected]	Secondary	6.4	MEDIUM	`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N`
3.1	CNA	DECLARED	6.4	MEDIUM	`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N`

CVSS v3.1 Breakdown

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Vendor Declared Affected Products

Source	Vendor	Product	Version	Platforms
CNA	Stellarwp	GiveWP Donation Plugin And Fundraising Platform	affected 4.16.0 semver	Not specified

References

Reference	Source	Link	Tags
plugins.trac.wordpress.org/browser/give/tags/4.16.0/src/Campaigns/Blocks/CampaignComment...	[email protected]	plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/give/trunk/src/Campaigns/Shortcodes/CampaignCommentsS...	[email protected]	plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/give/tags/4.16.0/src/Campaigns/Blocks/CampaignComment...	[email protected]	plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/give/tags/4.16.0/src/Campaigns/Actions/RegisterCampai...	[email protected]	plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/give/tags/4.16.0/src/Campaigns/Shortcodes/CampaignCom...	[email protected]	plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/give/tags/4.16.0/src/Campaigns/Shortcodes/CampaignCom...	[email protected]	plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/give/trunk/src/Campaigns/Actions/RegisterCampaignShor...	[email protected]	plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/08f8f489-6b31-45d8-a122-bbaa2...	[email protected]	www.wordfence.com
plugins.trac.wordpress.org/browser/give/trunk/src/Campaigns/Blocks/CampaignComments/Cont...	[email protected]	plugins.trac.wordpress.org
plugins.trac.wordpress.org/changeset	[email protected]	plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/give/trunk/src/Campaigns/Blocks/CampaignComments/rend...	[email protected]	plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/give/trunk/src/Campaigns/Shortcodes/CampaignCommentsS...	[email protected]	plugins.trac.wordpress.org
CVE Program record	CVE.ORG	www.cve.org	canonical
NVD vulnerability detail	NVD	nvd.nist.gov	canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: AmonRa (en)

Additional Advisory Data

Source	Time	Event
CNA	2026-06-24T18:18:16.000Z	Vendor Notified
CNA	2026-06-30T14:48:48.000Z	Disclosed

There are currently no legacy QID mappings associated with this CVE.