CVE-2025-12880 Progress Bar Blocks for Gutenberg <= 1.0.0 - Authenticated (Author+) Stored Cross-Site Scripting via SVG
Authenticated attackers with Author access can inject arbitrary scripts via SVG uploads, leading to stored XSS execution for other users.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-12880?
CVE-2025-12880 is a medium-severity cross-site scripting vulnerability in jobayer534 Progress Bar Blocks for Gutenberg, published on 11 Nov 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
The Progress Bar Blocks for Gutenberg plugin for WordPress is vulnerable to Stored Cross-Site Scripting via SVG File uploads in all versions up to, and including, 1.0.0 due to insufficient input sanitization and output escaping. 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 the SVG file.
Weakness: CWE-79
Which versions are affected by CVE-2025-12880?
How do I fix CVE-2025-12880?
No fix has been published for CVE-2025-12880 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-2025-12880 being exploited?
There is no known exploitation of CVE-2025-12880 in the wild and no public exploit code.
Sources
Also known as GHSA-79wj-q85x-crhp.