MantisZip Preview MainWindow.UI.cs Path.Combine path traversal

published 2026-09-24 46 d ago modified 2026-09-24 45 d ago also EUVD-2026-85780

cvss: 6.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 27%
public exploits: 0; none known

A security flaw has been discovered in MantisZip up to 0.4.5. Affected by this issue is the function Path.Combine of the file MainWindow.UI.cs of the component Preview. The manipulation results in path traversal. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: partial
Assessed: 45 d ago (2026-09-24)

Exploit prediction

0.34% chance of exploitation in the next 30 days, higher than 27% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

gitee.com https://gitee.com/yhx070424/MantisZip/issues/IK4AHB referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	4.0	5.3	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
CNA	3.1	6.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
CNA	3.0	6.3	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
CNA	2.0	7.5	AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR
CNA	4.0	2.1	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CNA	3.1	6.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
CNA	2.0	7.5	AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

n/a MantisZip

Classification

Weakness

CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

gitee.com /yhx070424/MantisZip/issues/IK4AHB
exploit, issue-tracking
vuldb.com /vuln/409081
vdb-entry, technical-description
vuldb.com /vuln/409081/cti
signature, permissions-required
vuldb.com /cve/CVE-2026-96884
third-party-advisory
vuldb.com /submit/906093
third-party-advisory

Sources

CVE List CVE-2026-96884
NVD CVE-2026-96884

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary