CVE-2026-7502

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 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

0.26% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 17.2% 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:L/UI:N/VC:N/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 2026-06-17.

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

2026-04-30 21:15Z4 MO AGO

Last updated

2026-05-01 14:23Z4 MO AGO

Reserved

2026-04-30

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Medium (CVSS 5.3)

CNA CVSS vector

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

0f74019fa0a432f2b4d1e56d3d3e39659bc4c52aa04c810924b556b808178e55

• vuldb.comVDB-360312 | LinkStackOrg LinkStack Management Endpoint UserController.php saveLink authorizationhttps://vuldb.com/vuln/360312vdb-entrytechnical-description
• vuldb.comVDB-360312 | CTI Indicators (IOB, IOC, IOA)https://vuldb.com/vuln/360312/ctisignaturepermissions-required
• vuldb.comSubmit #801787 | LinkStackOrg LinkStack 4.8.6 Authorization Bypasshttps://vuldb.com/submit/801787third-party-advisory
• github.comhttps://github.com/LinkStackOrg/LinkStack/pull/975issue-trackingpatch
• github.comhttps://github.com/LinkStackOrg/LinkStack/pull/975#issuecomment-4224234970issue-trackingpatch
• github.comhttps://github.com/az10b/security-advisories/blob/main/idor_linkstack.mdexploit
• github.comhttps://github.com/LinkStackOrg/LinkStack/product