CVE-2007-2836

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.

Published: 2007-07-02 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2007-2836 is rated Moderate Risk (55.8/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.39%). EPSS rose +1.60% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2007-2836

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.78% 2.39% +1.60%
2 2025-09-16 0.73% 0.78% +0.05%
3 2025-07-27 — 0.73% —

Full EPSS history (17 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2007-2836

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.4 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 4.9 [email protected]

Weakness enumeration for CVE-2007-2836

OS Trackers for CVE-2007-2836

vendor priority summary link
debian medium CVE-2007-2836 medium priority: Debian including 1 source packages (hiki), 2 status rows across 2 suites (bookworm, bullseye): resolved 2. https://security-tracker.debian.org/tracker/CVE-2007-2836
ubuntu medium CVE-2007-2836 medium priority: Ubuntu including 1 source packages (hiki), 9 status rows across 9 suites (dapper, edgy, feisty, gutsy, hardy, intrepid, jaunty, karmic, upstream): not-affected 5, ignored 3, needs-triage 1. https://ubuntu.com/security/CVE-2007-2836

NVD evaluator notes for CVE-2007-2836

Solution: The vendor has addressed this issue through a product update: http://prdownloads.sourceforge.jp/hiki/25954/hiki-0.8.7.tar.gz

Affected software / configurations for CVE-2007-2836

Vendor Product Version Raw CPE
hiki hiki 0.8.0 cpe:2.3:a:hiki:hiki:0.8.0:*:*:*:*:*:*:*
hiki hiki 0.8.1 cpe:2.3:a:hiki:hiki:0.8.1:*:*:*:*:*:*:*
hiki hiki 0.8.2 cpe:2.3:a:hiki:hiki:0.8.2:*:*:*:*:*:*:*
hiki hiki 0.8.3 cpe:2.3:a:hiki:hiki:0.8.3:*:*:*:*:*:*:*
hiki hiki 0.8.4 cpe:2.3:a:hiki:hiki:0.8.4:*:*:*:*:*:*:*
hiki hiki 0.8.5 cpe:2.3:a:hiki:hiki:0.8.5:*:*:*:*:*:*:*
hiki hiki 0.8.6 cpe:2.3:a:hiki:hiki:0.8.6:*:*:*:*:*:*:*

References for CVE-2007-2836

cvelogic Threat Intelligence