CVE-2026-3007 | Stored Cross-Site Scripting (XSS) Vulnerability

Successful exploitation of the stored cross-site scripting (XSS) vulnerability could allow an attacker to execute arbitrary JavaScript on any user account that has access to Koollab LMS’ courselet feature.

Published: 2026-04-23 Last update: 2026-05-10 Assigner: 5f57b9bf-260d-4433-bf07-b6a79e9bb7d4 Source: 5f57b9bf-260d-4433-bf07-b6a79e9bb7d4
NVD Status：Deferred，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-3007 is rated Low Risk (24.3/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.03%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2026-3007

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-04-23 — 0.03% —

Full EPSS history (1 record total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-3007

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.4 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 2.3 2.7 5f57b9bf-260d-4433-bf07-b6a79e9bb7d4

Weakness enumeration for CVE-2026-3007

GitHub Security Advisory for CVE-2026-3007

GHSA-p88x-88cf-mv94 · Severity: medium — Successful exploitation of the stored cross-site scripting (XSS) vulnerability could allow an...

Affected software / configurations for CVE-2026-3007

Vendor Product Version Raw CPE
No affected products in dataset.

References for CVE-2026-3007

cvelogic Threat Intelligence