CVE-2021-26601

Path Traversal in ImpressCMS

8.1 HighFix available

ImpressCMS before 1.4.3 allows libraries/image-editor/image-edit.php image_temp Directory Traversal.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: High
Availability: High

Exploit likelihood

3.24%Up 2.3 points since Mar 28, 2022

What each source reports

NVD Score used 8.1

ImpressCMS before 1.4.3 allows libraries/image-editor/image-edit.php image_temp Directory Traversal.

Record: CVE-2021-26601
CVSS 3.1: 8.1 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
CVSS 2.0: 5.5 MediumAV:N/AC:L/Au:S/C:N/I:P/A:P
Weakness: CWE-22
Updated: 2026-11-02

CVE List No score

ImpressCMS before 1.4.3 allows libraries/image-editor/image-edit.php image_temp Directory Traversal.

Record: CVE-2021-26601
Updated: 2026-11-02

EUVDEUVD-2022-1311 No score

ImpressCMS before 1.4.3 allows libraries/image-editor/image-edit.php image_temp Directory Traversal.

Record: EUVD-2022-1311
Updated: 2026-11-03

GitHub AdvisoriesGHSA-4q96-9f63-p7jj 8.1

Path Traversal in ImpressCMS

ImpressCMS before 1.4.3 allows libraries/image-editor/image-edit.php image_temp Directory Traversal.

Record: GHSA-4q96-9f63-p7jj
CVSS 3.1: 8.1 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Weakness: CWE-22
Updated: 2026-11-02

OSV 8.1

ImpressCMS before 1.4.3 allows libraries/image-editor/image-edit.php image_temp Directory Traversal.

Record: CVE-2021-26601
CVSS 3.1: 8.1 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Updated: 2026-11-02

OSVGHSA-4q96-9f63-p7jj 8.1

Path Traversal in ImpressCMS

ImpressCMS before 1.4.3 allows libraries/image-editor/image-edit.php image_temp Directory Traversal.

Record: GHSA-4q96-9f63-p7jj
CVSS 3.1: 8.1 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Weakness: CWE-22
Updated: 2026-11-02

Affected products

impresscms

Affected packages

Affected packages
Package	Affected	Fixed
`impresscms/impresscms` Packagist	before 1.4.3	1.4.3

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-26601 is a high vulnerability (CVSS 8.1) in Impresscms, published March 28, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.24%, the 88th percentile. Fixed in impresscms/impresscms 1.4.3.

References

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