CVE-2026-13246 GiveWP <= 4.16.0 - Authenticated (Author+) Stored Cross-Site Scripting via 'block_id' Shortcode Attribute
Authenticated attackers can inject arbitrary scripts via shortcode attributes, leading to code execution when users view affected pages.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-13246?
CVE-2026-13246 is a medium-severity cross-site scripting vulnerability in stellarwp GiveWP – Donation Plugin and Fundraising Platform, published on 1 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-79
Which versions are affected by CVE-2026-13246?
How do I fix CVE-2026-13246?
No fix has been published for CVE-2026-13246 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-13246 being exploited?
There is no known exploitation of CVE-2026-13246 in the wild and no public exploit code.
Sources
Also known as GHSA-mv65-r2jq-jh8q.