CVE-2026-41463
CVE-2026-41463 is a high-severity vulnerability with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.
Key facts
- Severity: High (CVSS 3.x base score 8.8)
- CVSS v4: 8.7
- EPSS exploit prediction: 1% (61st percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-25866
- Weakness: CWE-22
- Published:
- Last modified:
Description
ProjeQtor versions 7.0 through 12.4.3 contain a ZipSlip path traversal vulnerability in the plugin upload functionality that allows authenticated attackers with upload permissions to write files outside the intended extraction directory by crafting ZIP archives with directory traversal sequences. Attackers can exploit unvalidated archive extraction to write a PHP webshell to a web-accessible directory and achieve remote code execution with the privileges of the web server process.
Frequently asked questions
- What is CVE-2026-41463?
- ProjeQtor versions 7.0 through 12.4.3 contain a ZipSlip path traversal vulnerability in the plugin upload functionality that allows authenticated attackers with upload permissions to write files outside the intended extraction directory by crafting ZIP archives with directory traversal sequences. Attackers can exploit unvalidated archive extraction to write a PHP webshell to a web-accessible directory and achieve remote code execution with the privileges of the web server process.
- How severe is CVE-2026-41463?
- CVE-2026-41463 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2026-41463 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-41463?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2026-41463 have an EU (EUVD) identifier?
- Yes. CVE-2026-41463 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-25866.
- When was CVE-2026-41463 published?
- CVE-2026-41463 was published on 2026-04-27 and last updated on 2026-06-17.
References
- https://damiri.fr/en/cves/CVE-2026-41463
- https://gryfman.fr/cves/CVE-2026-41463
- https://www.projeqtor.com
- https://www.vulncheck.com/advisories/projeqtor-zipslip-path-traversal-via-uploadplugin-php
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