Xerte Online Toolkits Missing Authentication via connector.php
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · High · Low
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-497.
Summary
Xerte Online Toolkits versions 3.15 and earlier contain a missing authentication vulnerability in the elFinder connector endpoint at /editor/elfinder/php/connector.php where an HTTP redirect to unauthenticated callers does not call exit() or die(), allowing PHP execution to continue and process the full request server-side. Unauthenticated attackers can perform file operations on project media directories including creating directories, uploading files, renaming files, duplicating files, overwriting files, and deleting files, which can be chained with path traversal and extension blocklist vulnerabilities to achieve remote code execution and arbitrary file read.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| thexerteproject | xerteonlinetoolkits | up to 3.15.0 | — | No fix listed | CNA |
- xerteonlinetoolkits Vendorthexerteproject Affected up to 3.15.0 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-34413
- 2026-10-03 Alias added: GHSA-g35c-vgp7-f8qm
References
Patch 3
- https://github.com/thexerteproject/xerteonlinetoolkits/commit/02661be88cc369325ea01b508086bde7fbfec805
- https://github.com/thexerteproject/xerteonlinetoolkits/commit/17e4f945fe6a3400fa88c01eda18c1075ee4a212
- https://github.com/thexerteproject/xerteonlinetoolkits/commit/507d55c5e91bf9310b5b1c7fad8aebfef902ad23
More thexerteproject vulnerabilities
- TI-2026-81652 Remote code execution in Xerte Online Toolkits via language pack import CVSS 4.0HIGH 8.6
- TI-2026-26695 Xerte Online Toolkits Path Traversal via connector.php CVSS 4.0HIGH 7.1
- TI-2026-26696 Xerte Online Toolkits File Upload RCE via elfinder Connector CVSS 4.0CRITICAL 9.3
- TI-2026-30048 Xerte Online Toolkits Path Disclosure via /setup CVSS 4.0MEDIUM 6.9
Sources
- CVE-2026-34413 · CVE Program
- CVE-2026-34413 · NVD
- FIRST EPSS
- GHSA-g35c-vgp7-f8qm · GitHub Advisory Database · CC BY 4.0
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