CVE-2026-86277

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

0.52% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 43.8% of scored records. A rank, not a probability.

NVD base score

5.5 (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:N/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 2026-09-08.

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

2026-09-07 06:00Z1 MO AGO

Last updated

2026-09-08 15:56Z1 MO AGO

Reserved

2026-09-06

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Medium (CVSS 6.9)

CNA CVSS vector

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

Weaknesses

• CWE-285Improper AuthorizationClass
• CWE-639Authorization Bypass Through User-Controlled KeyBase

Data version

5.2

Document digest

b36f768345d0d4f06cbae1809954ee7345020b924a5f668d3fbab18cdb2f33ff

• vuldb.comVDB-399438 | SourceCodester Syllabus-Aligned Learning Management & Examination System delete_exam.php authorizationhttps://vuldb.com/vuln/399438vdb-entrytechnical-description
• vuldb.comVDB-399438 | CTI Indicators (IOB, IOC, IOA)https://vuldb.com/vuln/399438/ctisignaturepermissions-required
• vuldb.comCVE-2026-86277 | CVE Analysis and Reporthttps://vuldb.com/cve/CVE-2026-86277third-party-advisory
• vuldb.comSubmit #904877 | SourceCodester Syllabus-Aligned Learning Management & Examination System 1.0 Authorization Bypasshttps://vuldb.com/submit/904877third-party-advisory
• github.comhttps://github.com/hackliu/Vulnerability-Reports/blob/master/Syllabus%20Aligned%20Learning%20Management%20Examination%20System/VULN-04-IDOR-Broken-Access-Control.mdexploit
• www.sourcecodester.comhttps://www.sourcecodester.com/product