Description
Directory traversal vulnerability in the _do_attachment_move function in the AttachFile action (action/AttachFile.py) in MoinMoin 1.9.3 through 1.9.5 allows remote attackers to overwrite arbitrary files via a .. (dot dot) in a file name.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 6.0 | moin | 1.9.3-1+squeeze4 | DSA-2593-1 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | moin | >= 1.9.3, < 1.9.6 | 1.9.6 | GHSA-v33q-2xcj-4f3m |
Advisories 1
- DSA-2593-1 moin - several Debian Security (DSA / DLA) · Mar 9, 2026
References
- 57076 vdb-entry
- http://moinmo.in/SecurityFixes
- 51663 third-party-advisory
- DSA-2593 vendor-advisory
- https://bugs.launchpad.net/ubuntu/+source/moin/+bug/1094599
- 51676 third-party-advisory
- http://hg.moinmo.in/moin/1.9/rev/3c27131a3c52
- 51696 third-party-advisory
- USN-1680-1 vendor-advisory
- [oss-security] 20121229 Re: CVE request: MoinMoin Wiki (path traversal vulnerability) mailing-list