pimcore/pimcore security advisory

CVE-2026-45260: Pimcore: Missing Authorization in WebDAV MOVE via unchecked asset move handling

CVE-2026-45260 is a high-severity missing authorization vulnerability in the PHP package pimcore/pimcore (CVSS 8.1), published 17 July 2026. It is fixed in 2026.1.3; earlier versions are affected. Exploiting it needs a low-privilege user account.

high 8.1 published 2026-07-17 · updated 2026-07-23

Affected versions: <= 11.5.16
>= 12.0.0-RC1, <= 12.3.6
>= 2026.1.0, < 2026.1.3
Fixed in: 2026.1.3
Newest release: 2026.3.4
Severity: High · CVSS 8.1
Type: Missing authorization check
CWE-862
Exploited in the wild: Not on the CISA KEV list
checked 2026-11-04

Is your pimcore/pimcore version affected?

Run composer show pimcore/pimcore in your project, then enter the version. We check it against this and every other known pimcore/pimcore advisory.

Who can exploit CVE-2026-45260

Access: A normal, low-privilege user account in the app.

CVSS vector (scored by GitHub): CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Your app is only exposed if it uses the affected part of pimcore/pimcore. The advisory below says which part that is. If you are not sure, upgrade anyway: it costs less than finding out.

How to fix CVE-2026-45260 in pimcore/pimcore

Find the installed version: composer show pimcore/pimcore. If you never required it yourself, composer why pimcore/pimcore shows which package pulls it in.
Update it: composer update pimcore/pimcore --with-all-dependencies. You need 2026.1.3 or newer.
If Composer will not go that high, your composer.json constraint is holding it back. Widen it (for example "pimcore/pimcore": "^2026.1.3" if you can take that version), or upgrade the package that requires it.
Run composer audit. It reads the same advisory data and should no longer list CVE-2026-45260.
Commit composer.lock and deploy it. On the server, run composer install --no-dev from the lock file, not composer update.

If you cannot upgrade yet

General hardening for missing authorization issues while the upgrade waits. None of it replaces the fix.

Remove accounts you do not need and review what each role can do.
Put the admin area behind a VPN, IP allow-list or extra login until you upgrade.
If your app does not use the affected feature, note that in your audit, but still plan the upgrade.

The CVE-2026-45260 advisory

Pimcore is an Open Source Data & Experience Management Platform. Prior to 11.5.17 (LTS) and 12.3.7, Pimcore's WebDAV asset endpoint exposes a MOVE operation through /asset/webdav{path} without an authentication plugin in bundles/CoreBundle/src/Controller/WebDavController.php, and models/Asset/WebDAV/Tree.php performs asset mutation and deletion through models/Asset.php before checking a current Pimcore user or the rename, delete, create, or publish permissions, allowing unauthorized asset deletion, moves, or overwrites. This issue is fixed in versions 11.5.17 (LTS) and 12.3.7.

Description from the CVE record, published by GitHub (the CVE Numbering Authority), via the NVD entry for CVE-2026-45260. Advisory title: “Pimcore: Missing Authorization in WebDAV MOVE via unchecked asset move handling”.

References

GitHub advisory GHSA-wc7j-g8wx-m2qx github.com
Fix commit 9d7c77f github.com
Pull request #19120 github.com
Release v12.3.7 github.com

Other pimcore/pimcore advisories

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Where this data comes from

Affected and fixed versions: the Packagist security advisories API (GitHub Advisory Database and FriendsOfPHP), the same data composer audit uses. Synced 2026-11-03.
Description, score, weakness and references: NIST National Vulnerability Database (NVD), checked 2026-11-04. This product uses data from the NVD API but is not endorsed or certified by the NVD.
Exploited-in-the-wild status: the CISA Known Exploited Vulnerabilities catalog, checked 2026-11-04.
Compiled by Daniel Lasek at Laskyr from the sources above. The summary, “who can exploit it”, “how to fix it” and hardening sections are our plain-English reading of the record and are generated from it. The quoted description is the record's own text. Spot an error? Tell us.