Medium 5.4Published Oct 13, 2026

CVE-2026-110228wallabag 2.6.13 through 2.6.14 Stored XSS via Failed HTML Import Upload

Updated under an hour ago (2026-10-19 07:30 UTC)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for wallabag

Exploited in the last 30 days

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.

CVSS: 5.4 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness (CWE): CWE-79
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Awaiting Analysis
Record last updated: Oct 14, 2026
First seen by InfoSec Signals: Oct 13, 2026

Affected products

Affected products

wallabag wallabag wallabag:wallabag (from the name)	from 2.6.13 through 2.6.14	CNA record

References

https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/wallabag-pocket-html-failed-import-stored-xssthird-party-advisory
https://github.com/wallabag/wallabag/blob/74cbfd945bc316b5cf0308ba56e32fd2ed3443c0/src/Wallabag/ImportBundle/Controller/HtmlController.php#L28-L54technical-description
https://github.com/wallabag/wallabag/blob/74cbfd945bc316b5cf0308ba56e32fd2ed3443c0/app/config/wallabag.yml#L169-L177technical-description
https://github.com/wallabag/wallabag/blob/74cbfd945bc316b5cf0308ba56e32fd2ed3443c0/web/.htaccess#L50-L56technical-description
https://github.com/wallabag/wallabagproduct
https://www.vulncheck.com/advisories/wallabag-2.6.13-through-2.6.14-stored-xss-via-failed-html-import-uploadthird-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.