CVE-2026-86674

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.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpactpartialSuccessful exploitation gives limited 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

0.37% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 31.5% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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 2026-09-11.

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

2026-09-08 18:15Z1 MO AGO

Last updated

2026-09-11 20:34Z1 MO AGO

Reserved

2026-09-08

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Medium (CVSS 5.3)

CNA CVSS vector

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

Weaknesses

• CWE-384Session FixationCompound

Data version

5.2

Document digest

a18e55dcd372cc4f5a713d7a5157612f48ec38d775819065c5e67e6fb807f492

• vuldb.comVDB-399763 | ningzichun Student Management System login.php session_start session fixiationhttps://vuldb.com/vuln/399763vdb-entrytechnical-description
• vuldb.comVDB-399763 | CTI Indicators (IOB, IOC, IOA)https://vuldb.com/vuln/399763/ctisignaturepermissions-required
• vuldb.comCVE-2026-86674 | CVE Analysis and Reporthttps://vuldb.com/cve/CVE-2026-86674third-party-advisory
• vuldb.comSubmit #908933 | ningzichun student-management-system 98760f5711cf6dc8b4adca53a9e207ca49b02ebf Session Fixiationhttps://vuldb.com/submit/908933third-party-advisory
• github.comhttps://github.com/ningzichun/student-management-system/issues/16exploitissue-tracking