CVE-2026-34413: thexerteproject xerteonlinetoolkits · Exposure of Sensitive System Information to an Unauthorized Control Sphere
Affects thexerteproject xerteonlinetoolkitsSource CVE Database V5
Public exploit available (Metasploit) · CVSS 8.8 High.
Data as of 30 Oct 2026, 11:52 UTC
- EPSS
- 3.1% chance of exploitation in 30 days – higher than 87% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 22 Apr 2026
Detectable: evidence found.
nuclei template: Xerte Online Toolkits <= 3.15 - Remote Code Execution
Weaponized: evidence found.
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| thexerteprojectxerteonlinetoolkits | Affected
| Fixed in– |
GitHubthexerteproject/xerteonlinetoolkitspkg:github/thexerteproject/xerteonlinetoolkitsOther threats | Affected
| Fixed in– |
GitHubxerteonlinetoolkitspkg:github/xerteonlinetoolkitsOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Until an official fix is available, restrict access to the elFinder connector endpoint and monitor for suspicious activity. Avoid exposing the vulnerable endpoint to untrusted networks.
Description
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.
References
- github.com/bootstrapbool/xerteonlinetoolkits-rce (opens in a new tab)
- xerte.org.uk/xertetoolkits_3.15_ChangeLog.html (opens in a new tab)
- xerte.org.uk/index.php/en/downloads-1/category/3-xerte-online-toolkits (opens in a new tab)
- github.com/thexerteproject/xerteonlinetoolkits/issues/1527 (opens in a new tab)
- github.com/thexerteproject/xerteonlinetoolkits/commit/02661be88cc369325ea01b508086bde7fbfec805 (opens in a new tab)
- github.com/thexerteproject/xerteonlinetoolkits/commit/17e4f945fe6a3400fa88c01eda18c1075ee4a212 (opens in a new tab)
- github.com/thexerteproject/xerteonlinetoolkits/commit/507d55c5e91bf9310b5b1c7fad8aebfef902ad23 (opens in a new tab)
- vulncheck.com/advisories/xerte-online-toolkits-missing-authentication-via-connector-php (opens in a new tab)