Description
Directory traversal vulnerability in session.rb in Hiki 0.8.0 through 0.8.6 allows remote attackers to delete arbitrary files via directory traversal sequences in the session ID, which is matched against an insufficiently restrictive regular expression before it is used to construct a filename that is marked for deletion at logout.
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 12 | hiki | 0.8.7-1 | — |
| Debian 4.0 | hiki | 0.8.6-1etch1 | DSA-1324-1 |
Advisories 1
- DSA-1324-1 hiki Debian Security (DSA / DLA) · Mar 9, 2026
References
- DSA-1324 vendor-advisory
- 24603 vdb-entry
- 37469 vdb-entry
- http://hikiwiki.org/en/advisory20070624.html
- ADV-2007-2304 vdb-entry
- http://hikiwiki.org/hiki-0_8_6.patch
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=430691
- 25874 third-party-advisory
- 25764 third-party-advisory
- hiki-sessionid-security-bypass(35029) vdb-entry
- JVN#05187780 third-party-advisory