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CVE-2026-34415

CRITICAL

9.8

Description

Xerte Online Toolkits versions 3.15 and earlier contain an incomplete input validation vulnerability in the elFinder connector endpoint that fails to block PHP-executable extensions .php4 due to an incorrect regex pattern. Unauthenticated attackers can exploit this flaw combined with authentication bypass and path traversal vulnerabilities to upload malicious PHP code, rename it with a .php4 extension, and execute arbitrary operating system commands on the server.

Details CVE

Score CVSS v3.19.8

SeveriteCRITICAL

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

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurNONE

Publie4/22/2026

Derniere modification4/22/2026

Sourcenvd

Observations honeypot0

Faiblesses (CWE)

CWE-184

References

https://github.com/thexerteproject/xerteonlinetoolkits/commit/02661be88cc369325ea01b508086bde7fbfec805(disclosure@vulncheck.com)

https://github.com/thexerteproject/xerteonlinetoolkits/commit/17e4f945fe6a3400fa88c01eda18c1075ee4a212(disclosure@vulncheck.com)

https://github.com/thexerteproject/xerteonlinetoolkits/commit/507d55c5e91bf9310b5b1c7fad8aebfef902ad23(disclosure@vulncheck.com)

https://github.com/thexerteproject/xerteonlinetoolkits/issues/1527(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/xerte-online-toolkits-file-upload-rce-via-elfinder-connector(disclosure@vulncheck.com)

https://xerte.org.uk/index.php/en/downloads-1/category/3-xerte-online-toolkits(disclosure@vulncheck.com)

https://xerte.org.uk/xertetoolkits_3.15_ChangeLog.html(disclosure@vulncheck.com)

Correlations IOC

Aucune correlation enregistree

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