CVE-2026-91751

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.53% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 45.1% of scored records. A rank, not a probability.

NVD base score

7.2 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/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

NVD analysis status

Deferred. NVD last modified this record on 2026-09-16.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-09-15 00:35Z1 MO AGO

Last updated

2026-09-24 14:22Z1 MO AGO

Reserved

2026-09-14

Assigning CNA

VulnCheck

Record state

PUBLISHED

Severity

High (CVSS 7.2)

CNA CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N

Weaknesses

• CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')Base

Data version

5.2

Document digest

78492d7ecf818ef6be25b8b3042108f1ca3cdfdc59acc5a82841082777e23164

• github.comGitHub Issue #596https://github.com/flextype/flextype/issues/596issue-tracking
• github.comhttps://github.com/flextype/flextypeproduct
• github.comhttps://github.com/flextype/flextype/blob/v1.0.0-alpha.3/src/flextype/core/Entries/Entries.php#L856-L906technical-description
• www.vulncheck.comVulnCheck Advisory: Flextype CMS through 1.0.0-alpha.3 Path Traversal via Entries REST APIhttps://www.vulncheck.com/advisories/flextype-cms-through-1.0.0-alpha.3-path-traversal-via-entries-rest-apithird-party-advisory