What is CVE-2026-41459?

CVE-2026-41459 is a medium-severity vulnerability in Thexerteproject Xerteonlinetoolkits, classified under Exposure of Sensitive System Information to an Unauthorized Control Sphere. CVSS score: 5.3/10. Published 2026-04-22.

How severe is CVE-2026-41459?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Is CVE-2026-41459 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Thexerteproject Xerteonlinetoolkits

CVE-2026-41459

Xerte Online Toolkits versions 3.15 and earlier contain an information disclosure vulnerability that allows unauthenticated attackers to retrieve the full server-side filesystem path of the application root. Attackers can send a GET request to the /setup page to access the exposed root_path value rendered in the HTML response, which enables exploitation of path-dependent vulnerabilities such as relative path traversal in connector.php.

Published 2026-04-22 · last modified 2026-07-14.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.011 (64.5th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 64.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.011 · change: +0.003

Affected products

Thexerteproject Xerteonlinetoolkits — versions 3.15.0, 0

Weakness classification (CWE)

CWE-497 — Exposure of Sensitive System Information to an Unauthorized Control Sphere

Public proof-of-concept exploits

rapid7/metasploit-framework

References

github.com/bootstrapbool/xerteonlinetoolkits-rce (technical-description, exploit)
xerte.org.uk/xertetoolkits_3.15_ChangeLog.html (release-notes)
xerte.org.uk/index.php/en/downloads-1/category/3-xerte-online-toolkits (product, permissions-required)
github.com/thexerteproject/xerteonlinetoolkits/issues/1527 (issue-tracking)
github.com/thexerteproject/xerteonlinetoolkits/commit/f063e942b4a9bf77a06829e84… (patch)
www.vulncheck.com/advisories/xerte-online-toolkits-path-disclosure-via-setup (third-party-advisory)

Frequently asked questions

What is CVE-2026-41459?: CVE-2026-41459 is a medium-severity vulnerability in Thexerteproject Xerteonlinetoolkits, classified under Exposure of Sensitive System Information to an Unauthorized Control Sphere. CVSS score: 5.3/10. Published 2026-04-22.
How severe is CVE-2026-41459?: Medium severity. CVSS v3 base score is 5.3 out of 10.
Is CVE-2026-41459 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.