CVE-2022-24977

Name: CVE-2022-24977
Creator: NVD / NIST
Published: 2022-02-14T12:15:27.867+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 6.45%

Last modified Jun 17, 2026

CVE-2022-24977 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. ImpressCMS before 1.4.2 allows unauthenticated remote code execution via ...../// directory traversal in origName or imageName, leading to unsafe interaction with the CKEditor processImage.php script. The payload may be placed in PHP_SESSION_UPLOAD_PROGRESS when the PHP installation supports upload_progress.. EPSS estimates a 6.45% chance of exploitation in the next 30 days.

Description

ImpressCMS before 1.4.2 allows unauthenticated remote code execution via ...../// directory traversal in origName or imageName, leading to unsafe interaction with the CKEditor processImage.php script. The payload may be placed in PHP_SESSION_UPLOAD_PROGRESS when the PHP installation supports upload_progress.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

6.45%

92.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-22

Affected Software

Vendor	Product	Versions
Impresscms	Impresscms	< 1.4.2

References

https://github.com/ImpressCMS/impresscms/commit/a66d7bb499faafab803e24833606028fa0ba4261Patch, Third Party Advisory
https://github.com/ImpressCMS/impresscms/compare/1.4.1...v1.4.2Patch, Third Party Advisory
https://r0.haxors.org/posts?id=8Exploit, Third Party Advisory
https://github.com/ImpressCMS/impresscms/commit/a66d7bb499faafab803e24833606028fa0ba4261Patch, Third Party Advisory
https://github.com/ImpressCMS/impresscms/compare/1.4.1...v1.4.2Patch, Third Party Advisory
https://r0.haxors.org/posts?id=8Exploit, Third Party Advisory

Timeline

Published: Feb 14, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-24977?

How severe is CVE-2022-24977?

CVE-2022-24977 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 6.45% probability of exploitation in the next 30 days.

How do I fix CVE-2022-24977?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-24977?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST