Is CVE-2026-32731 actively exploited?

No active exploitation of CVE-2026-32731 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-32731 be exploited remotely?

Yes. CVE-2026-32731 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-32731?

CVE-2026-32731 has a CVSS score of 9.9 (CRITICAL).

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CRITICAL

CVE-2026-32731

CWE-22Published: March 18, 2026· Updated: Mar 24, 2026

9.9

CVSS v3.1

EPSS:0.06%probability of exploitation in 30 daysPercentile:19.3th

Official Description

ApostropheCMS is an open-source content management framework. Prior to version 3.5.3 of `@apostrophecms/import-export`,

The `extract()` function in `gzip.js` constructs file-write paths using `fs.createWriteStream(path.join(exportPath, header.name))`. `path.join()` does not resolve or sanitise traversal segments such as `../`. It concatenates them as-is, meaning a tar entry named `../../evil.js` resolves to a path outside the intended extraction directory. No canonical-path check is performed before the write stream is opened. This is a textbook Zip Slip vulnerability. Any user who has been granted the Global Content Modify permission — a role routinely assigned to content editors and site managers — can upload a crafted `.tar.gz` file through the standard CMS import UI and write attacker-controlled content to any path the Node.js process can reach on the host filesystem. Version 3.5.3 of `@apostrophecms/import-export` fixes the issue.

NVD Source

Technical Analysis

CVE-2026-32731 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.9.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.