What’s Vulnerable › Vulnerabilities

CVE-2022-24977

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 6.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-02-14 · updated 2026-06-17
• Weakness: CWE-22

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.

Affected products

• ImpressCMS: before 1.4.2 — fixed in 1.4.2

How to fix

Upgrade to a fixed version: ImpressCMS 1.4.2. Check the vendor advisory for mitigations.

References

• https://github.com/ImpressCMS/impresscms/commit/a66d7bb499faafab803e24833606028fa0ba4261
• https://github.com/ImpressCMS/impresscms/compare/1.4.1...v1.4.2
• https://r0.haxors.org/posts?id=8
• https://github.com/ImpressCMS/impresscms/commit/a66d7bb499faafab803e24833606028fa0ba4261
• https://github.com/ImpressCMS/impresscms/compare/1.4.1...v1.4.2
• https://r0.haxors.org/posts?id=8

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