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Public proof of conceptFix available

CVE-2020-35460

A public proof of concept exists; no exploitation attested.

  • Published2020-12-14
  • WeaknessCWE-22

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

common/InputStreamHelper.java in Packwood MPXJ before 8.3.5 allows directory traversal in the zip stream handler flow, leading to the writing of files to arbitrary locations.

Timeline

dates in UTC
  1. 2020-12-1423:15CVE publishedNVD
  2. 2026-10-2319:23First public proof of conceptPoC-in-GitHub

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2020-35460?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2020-35460?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Oracle primavera unifier
BranchAffectedFixed in
17.x≥ 17.7, ≤ 17.12no fix published
16.1= 16.1no fix published
16.2= 16.2no fix published
18.8= 18.8no fix published
19.12= 19.12no fix published
21.12= 21.12no fix published
Mpxj
BranchAffectedFixed in
8.3< 8.3.58.3.5

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

Full record on NVD

Fix

  1. Vendor fix CISA ICSA-23-320-09 · 1 productUpdate to V10.4.4 or later version
  2. Mitigation from the vendor CISA ICSA-23-320-09 · 1 productEnsure all files imported into COMOS originate from a trusted source and transmitted are over secure channels

Advisories and patches

Detection

read 2026-10-23 19:23 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
1 repository, unverifiedshoucheng3/joniles__mpxj_CVE-2020-35460_8-3-4
PoC-in-GitHub

Sources

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Published
2020-12-14
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2020-35460?

common/InputStreamHelper.java in Packwood MPXJ before 8.3.5 allows directory traversal in the zip stream handler flow, leading to the writing of files to arbitrary locations.

Is CVE-2020-35460 actively exploited?

Active exploitation of CVE-2020-35460 has not been confirmed. Its EPSS score was 1.9% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-35460?

CVE-2020-35460 has a CVSS v3 base score of 5.3 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

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