XSS in Wallabag
CVE-2026-110228
wallabag 2.6.13 through 2.6.14 contains a stored cross-site scripting vulnerability that allows authenticated users to host arbitrary HTML by triggering a failed Pocket HTML, Pocket CSV or Shaarli import. Attackers can upload an HTML file with script but no anchor elements, leaving it at the predictable /uploads/import/<user-id>.html path to execute script in victims' wallabag sessions.
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
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/wallabag-pocket-html-failed-import-stored-xss (third-party-advisory)
- github.com/wallabag/wallabag/blob/74cbfd945bc316b5cf0308ba56e32fd2ed3443c0/src/… (technical-description)
- github.com/wallabag/wallabag/blob/74cbfd945bc316b5cf0308ba56e32fd2ed3443c0/app/… (technical-description)
- github.com/wallabag/wallabag/blob/74cbfd945bc316b5cf0308ba56e32fd2ed3443c0/web/… (technical-description)
- github.com/wallabag/wallabag (product)
- www.vulncheck.com/advisories/wallabag-2.6.13-through-2.6.14-stored-xss-via-fail… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-110228?
- CVE-2026-110228 is a medium-severity vulnerability in Wallabag, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-10-13.
- How severe is CVE-2026-110228?
- Medium severity. CVSS v3 base score is 5.4 out of 10.