CVE-2023-0670 | BDVDB-2026-199233 Detail

Ulearn

Description#

Ulearn version a5a7ca20de859051ea0470542844980a66dfc05d allows an attacker with administrator permissions to obtain remote code execution on the server through the image upload functionality. This occurs because the application does not validate that the uploaded image is actually an image.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: network.

Weaknesses#

CWE-434 Unrestricted Upload of File with Dangerous Type

References#

https://fluidattacks.com/advisories/scott/

Exploit#

No public exploit known

History#

Version 12023-04-05Record published in the CVE List.
Version 22025-02-13Most recent update recorded in the CVE List.

Published

Published: 2023-04-05
Last modified: 2025-02-13

Vendor information

Vendor: Not stated
Product: Ulearn

Score

7.2 High

EPSS

1.0%, Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 63.6.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Unrestricted File Upload

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
a5a7ca20de859051ea0470542844980a66dfc05d
Fixed
Not stated

Scoring System

CVSS v4.0

Not available

CVSS v3.1

7.2 High

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	High
User Interaction	None
Scope	Unchanged
Confidentiality	High
Integrity	High
Availability	High

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).