Skip to main content

SHIRASAGI CVE-2026-82582

| EUVDEUVD-2026-75272 MEDIUM
Authorization Bypass Through User-Controlled Key (CWE-639)
2026-09-10 jpcert GHSA-fpq2-6xq4-6xm4
Shirasagi
5.3
CVSS 4.0 · Vendor: jpcert
Share

Severity by source

Vendor (jpcert) PRIMARY
5.3 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/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
vuln.today AI
4.3 MEDIUM

Network-reachable IDOR requiring an authenticated low-privilege session; impact is read-only file disclosure with no integrity or availability consequence.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (jpcert).

CVSS VectorVendor: jpcert

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

3
Metadata Corrected
Sep 10, 2026 - 07:40 vuln.today
tag: Authentication Bypass removed
CVSS changed
Sep 10, 2026 - 07:22 NVD
4.3 (MEDIUM) 5.3 (MEDIUM)
Analysis Generated
Sep 10, 2026 - 07:03 vuln.today

DescriptionCVE.org

An authorization bypass vulnerability exists in SHIRASAGI through a user-controlled key, which may allow an unauthorized attacker to retrieve files from the groupware's shared file feature.

AnalysisAI

Authorization bypass in SHIRASAGI's groupware shared file feature allows an authenticated low-privileged user to retrieve files belonging to groups or users other than their own by manipulating a user-controlled resource key (CWE-639 IDOR). Reported by JPCERT/CC and published as JVN#37476837, the issue affects all tracked SHIRASAGI versions (cpe:2.3:a:shirasagi_project:shirasagi:*) with a CVSS score of 4.3 reflecting constrained confidentiality-only impact and a required authenticated session. …

Unlock full vulnerability intelligence

  • Risk assessment & exploitation conditions
  • Attack chain visualization
  • Remediation with exact patch versions
  • Threat intelligence from 22 sources
  • Personal watchlist & email alerts
Continue with Google Continue with GitHub

Free forever · No credit card required

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
technique details hidden
Delivery
technique details hidden
Exploit
technique details hidden
Execution
technique details hidden
Impact
technique details hidden
Sign in to reveal

Vulnerability AssessmentAI

Exploitation Exploitation requires a valid SHIRASAGI user account - fully unauthenticated access is not possible, as confirmed by PR:L in the CVSS vector. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 3.0 vector AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N correctly positions this as a network-reachable, low-complexity issue requiring a valid authenticated session and producing limited, read-only confidentiality impact. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Consult the SHIRASAGI Project's official support page at https://www.ss-proj.org/support/1710.html for the patched release version and upgrade instructions; an exact fixed version number is not independently confirmed from the provided data but is expected to be specified there. … Detailed patch versions, workarounds, and compensating controls in full report.
Sign in to read full assessment

Threat intelligence, references, and detailed analysis are available after sign-in.

More in Shirasagi

View all
CVE-2022-43479 MEDIUM POC
6.1 Dec 05

Open redirect vulnerability in SHIRASAGI v1.14.4 to v1.15.0 allows a remote unauthenticated attacker to redirect users t
CVE-2023-22425 MEDIUM POC
5.4 Feb 24

Stored cross-site scripting vulnerability in Schedule function of SHIRASAGI v1.16.2 and earlier versions allows a remote
CVE-2022-43499 MEDIUM POC
5.4 Dec 05

Stored cross-site scripting vulnerability in SHIRASAGI versions prior to v1.16.2 allows a remote authenticated attacker

CVE-2023-41889 MEDIUM POC
5.3 Sep 15

SHIRASAGI is a Content Management System. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable,

CVE-2023-39448 HIGH
8.8 Sep 05

Path traversal vulnerability in SHIRASAGI prior to v1.18.0 allows a remote authenticated attacker to alter or create arb
CVE-2023-22427 MEDIUM POC
4.8 Feb 24

Stored cross-site scripting vulnerability in Theme switching function of SHIRASAGI v1.16.2 and earlier versions allows a
CVE-2024-46898 HIGH
7.5 Oct 15

SHIRASAGI prior to v1.19.1 processes URLs in HTTP requests improperly, resulting in a path traversal vulnerability. Rate
CVE-2023-36492 MEDIUM
6.1 Sep 05

Reflected cross-site scripting vulnerability in SHIRASAGI prior to v1.18.0 allows a remote unauthenticated attacker to e
CVE-2022-29485 MEDIUM
6.1 Jun 14

Cross-site scripting vulnerability in SHIRASAGI v1.0.0 to v1.14.2, and v1.15.0 allows a remote attacker to inject an arb
CVE-2020-5607 MEDIUM
6.1 Jul 10

Open redirect vulnerability in SHIRASAGI v1.13.1 and earlier allows remote attackers to redirect users to arbitrary web

CVE-2019-6009 MEDIUM
6.1 Sep 12

Open redirect vulnerability in SHIRASAGI v1.7.0 and earlier allows remote attackers to redirect users to arbitrary web s
CVE-2023-38569 MEDIUM
5.4 Sep 05

Stored cross-site scripting vulnerability in SHIRASAGI prior to v1.18.0 allows a remote authenticated attacker to execut

Same weakness CWE-639 – Authorization Bypass Through User-Controlled Key

View all
CVE-2024-50483 CRITICAL
9.8
CVE-2026-55255 HIGH POC
8.4
CVE-2025-3605 CRITICAL POC
9.8
CVE-2022-3805 HIGH POC
8.6
CVE-2025-5947 CRITICAL POC
9.8
CVE-2020-36923 CRITICAL POC
9.8
CVE-2025-14998 CRITICAL POC
9.8
CVE-2023-3048 CRITICAL POC
9.8

Share

CVE-2026-82582 vulnerability details – vuln.today
Back

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy