CVE-2026-34415
Last modified
CVE-2026-34415 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 3.57% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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
Weakness Enumeration
References
Timeline
- Published
- Last Modified
- Status
- Deferred
Frequently Asked Questions
What is CVE-2026-34415?
How severe is CVE-2026-34415?
How do I fix CVE-2026-34415?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-34406APTRS (Automated Penetration Testing Reporting System) is a …8.8
- CVE-2026-34408An issue was discovered in Gambio 4.9.2.0 (patched in 2024-0…9.1
- CVE-2026-3441A flaw was found in GNU Binutils. This heap-based buffer ove…7.1
- CVE-2026-34411Appsmith versions prior to 1.98 expose sensitive instance ma…6.9
- CVE-2026-34413Xerte Online Toolkits versions 3.15 and earlier contain a mi…8.8
- CVE-2026-34414Xerte Online Toolkits versions 3.15 and earlier contain a re…7.1
- CVE-2026-34416OSCAL-GUI contains a reflected cross-site scripting vulnerab…6.1
- CVE-2026-34417OSCAL-GUI contains a reflected cross-site scripting vulnerab…6.1
- CVE-2026-3442A flaw was found in GNU Binutils. This vulnerability, a heap…7.1
- CVE-2026-34423Rejected reason: This CVE ID has been rejected or withdrawn …
- CVE-2026-34424Smart Slider 3 Pro version 3.5.1.35 for WordPress and Joomla…9.8
- CVE-2026-34425OpenClaw versions prior to commit 8aceaf5 contain a prefligh…4.3
Are you affected by CVE-2026-34415?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST