CVE-2026-34415xerteonlinetoolkits Vulnerability
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.
Published Apr 22, 2026 · Updated Aug 12, 2026 · Also known as EUVD-2026-25069, GHSA-67j3-r63p-59hf
Key Facts
Patch immediately- CVE-2026-34415 is a critical-severity vulnerability (CVSS 9.3 v4) affecting xerteonlinetoolkits.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 4.4% probability of exploitation in the next 30 days.
- Fixed versions are available, including xerteonlinetoolkits 02661be88cc369325ea01b508086bde7fbfec805.
- Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Scores
CVSS v4
9.3
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS (30-day exploit likelihood)
4.4%
Exploit maturity
Weaponized
ATLAS score
51/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Weaponized
Public exploit code
1
Proof-of-concept links
In-the-wild evidence
0
Reports of active use
Advisories And Exploit References
- advisoryhttps://www.cve.org/CVERecord?id=CVE-2026-34415
- advisoryhttps://nvd.nist.gov/vuln/detail/CVE-2026-34415
- advisoryhttps://github.com/bootstrapbool/xerteonlinetoolkits-rce
- advisoryhttps://github.com/thexerteproject/xerteonlinetoolkits/commit/02661be88cc369325ea01b508086bde7fbfec805
- advisoryhttps://github.com/thexerteproject/xerteonlinetoolkits/commit/17e4f945fe6a3400fa88c01eda18c1075ee4a212
- advisoryhttps://github.com/thexerteproject/xerteonlinetoolkits/commit/507d55c5e91bf9310b5b1c7fad8aebfef902ad23
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.
Affected Products
3 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| xerteonlinetoolkits | See advisory | 02661be88cc369325ea01b508086bde7fbfec805 |
Patched Releases
xerteonlinetoolkits
02661be88cc369325ea01b508086bde7fbfec805
Timeline
Publicly disclosed
Apr 22, 2026
Last updated
Aug 12, 2026
Weakness Type
- CWE-184 Incomplete List of Disallowed Inputs
References
- advisorycve.org · CVERecord
- advisorynvd.nist.gov · CVE-2026-34415
- advisorygithub.com · xerteonlinetoolkits-rce
- advisorygithub.com · 02661be
- advisorygithub.com · 17e4f94
FAQ
Common Questions.
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.
Affected: xerteonlinetoolkits. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including xerteonlinetoolkits 02661be88cc369325ea01b508086bde7fbfec805.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Is CVE-2026-34415 On Your Attack Surface?
Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.
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