What is CVE-2026-32731?

CVE-2026-32731 is a critical-severity vulnerability in Apostrophecms Import-export, classified under Path Traversal. CVSS score: 10.0/10. Published 2026-03-18.

How severe is CVE-2026-32731?

Critical severity. CVSS v3 base score is 10.0 out of 10.

Is CVE-2026-32731 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Path Traversal in Apostrophecms Import-export

CVE-2026-32731

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, hea…

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.001 (27.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

Apostrophecms Import-export — versions < 3.5.3

Weakness classification (CWE)

CWE-22 — Path Traversal

Public proof-of-concept exploits

0xEr3n/CVE-2026-32731

References

https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-mwxc-m426-3f78 (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-32731?: CVE-2026-32731 is a critical-severity vulnerability in Apostrophecms Import-export, classified under Path Traversal. CVSS score: 10.0/10. Published 2026-03-18.
How severe is CVE-2026-32731?: Critical severity. CVSS v3 base score is 10.0 out of 10.
Is CVE-2026-32731 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.