CVE-2026-110228CWE-79cross-site-scripting

CVE-2026-110228

Medium · published October 13, 2026

CVSS v3.1

5.4

EPSS

Percentile

15.1

In the wild

Unconfirmed

What it is

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.

The record

Technical detail

CVSS v3.1: 5.4 · MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CVSS v4.0: 5.1 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
EPSS: 0.00247 · 15.1th percentile
Weakness: CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published: 2026-10-13T23:18Z

References (7)

https://github.com/wallabag/wallabag · [email protected]https://github.com/wallabag/wallabag/blob/74cbfd945bc316b5cf0308ba56e32fd2ed3443c0/app/config/wallabag.yml#L169-L177 · [email protected]https://github.com/wallabag/wallabag/blob/74cbfd945bc316b5cf0308ba56e32fd2ed3443c0/src/Wallabag/ImportBundle/Controller/HtmlController.php#L28-L54 · [email protected]https://github.com/wallabag/wallabag/blob/74cbfd945bc316b5cf0308ba56e32fd2ed3443c0/web/.htaccess#L50-L56 · [email protected]https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/wallabag-pocket-html-failed-import-stored-xss · [email protected]https://www.vulncheck.com/advisories/wallabag-2.6.13-through-2.6.14-stored-xss-via-failed-html-import-upload · [email protected]https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/wallabag-pocket-html-failed-import-stored-xss · 134c704f-9b21-4f2e-91b3-4a467353bcc0

EPSS history

Timeline

15 OCT 03:28Z
EPSS moved — → 0%
epss
13 OCT 18:50Z
wallabag 2.6.13 through 2.6.14 Stored XSS via Failed HTML Import Upload
cvelistv5
13 OCT 18:50Z
wallabag 2.6.13 through 2.6.14 Stored XSS via Failed HTML Import Upload
cvelistv5