XSS in Shaarli
CVE-2026-24476
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.002 (5.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 6th percentile — 5.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000
Affected products
- Shaarli — versions < 0.16.0
- Shaarli Project
Weakness classification (CWE)
References
- github.com/shaarli/Shaarli/security/advisories/GHSA-g3xq-mj52-f8pg (Exploit, Vendor Advisory)
- github.com/shaarli/Shaarli/commit/b854c789289c4b0dfbb7c1e5793bae7d8f94e063 (Patch)
Frequently asked questions
- What is CVE-2026-24476?
- CVE-2026-24476 is a medium-severity vulnerability in Shaarli, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-01-26.
- How severe is CVE-2026-24476?
- Medium severity. CVSS v3 base score is 5.4 out of 10.