CVE-2026-24476 Shaarli vulnerable to stored XSS via Suggested Tags
Attackers can inject arbitrary HTML via malicious tags in Shaarli, leading to stored XSS attacks on the start page.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-24476?
CVE-2026-24476 is a medium-severity cross-site scripting vulnerability in Shaarli, published on 26 Jan 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Shaarli is a personal bookmarking service. Prior to version 0.16.0, crafting a malicious tag which starting with `"` prematurely ends the `<input>` tag on the start page and allows an attacker to add arbitrary html leading to a possible XSS attack. Version 0.16.0 fixes the issue.
Weakness: CWE-79
Which versions are affected by CVE-2026-24476?
It affects 1 product.
Products include Shaarli Project Shaarli.
How do I fix CVE-2026-24476?
Upgrade to a fixed version.
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-2026-24476 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-24476 exists.
Other vulnerabilities in Shaarli
Sources
Also known as DEBIAN-CVE-2026-24476, DSA-6128-1, GHSA-g3xq-mj52-f8pg, UBUNTU-CVE-2026-24476.