CVE-2020-24403 | Incorrect permissions could lead to unauthorized modification of inventory source data via REST API

Magento version 2.4.0 and 2.3.5p1 (and earlier) are affected by an incorrect user permissions vulnerability within the Inventory component. This vulnerability could be abused by authenticated users with Inventory and Source permissions to make unauthorized changes to inventory source data via the REST API.

Published: 2020-11-08 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2020-24403 is rated Low Risk (37.7/100): CVSS Low severity, with medium exploitation likelihood (EPSS 1.61%). EPSS rose +1.42% over the last day, indicating growing attacker interest. 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-2020-24403

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 2026-06-15 0.19% 1.61% +1.42%
2 2026-01-27 0.26% 0.19% -0.07%
3 2026-01-06 — 0.26% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-24403

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
2.7 3.1 LOW
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/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:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
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.
 1.2 1.4 [email protected]
2.7 3.1 LOW
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/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:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
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.
 1.2 1.4 [email protected]
4.0 2.0 MEDIUM
AV:N/AC:L/Au:S/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 8.0 2.9 [email protected]

Weakness enumeration for CVE-2020-24403

GitHub Security Advisory for CVE-2020-24403

GHSA-39rw-4m66-82gf · Severity: low · Ecosystem: composer — Magento incorrect user permissions vulnerability within the Inventory component

Affected software / configurations for CVE-2020-24403

Vendor Product Version Raw CPE
magento magento < 2.3.5 cpe:2.3:a:magento:magento:*:*:*:*:commerce:*:*:*
magento magento < 2.3.5 cpe:2.3:a:magento:magento:*:*:*:*:open_source:*:*:*
magento magento 2.3.5 cpe:2.3:a:magento:magento:2.3.5:-:*:*:commerce:*:*:*
magento magento 2.3.5 cpe:2.3:a:magento:magento:2.3.5:-:*:*:open_source:*:*:*
magento magento 2.3.5 cpe:2.3:a:magento:magento:2.3.5:p1:*:*:commerce:*:*:*
magento magento 2.3.5 cpe:2.3:a:magento:magento:2.3.5:p1:*:*:open_source:*:*:*
magento magento 2.4.0 cpe:2.3:a:magento:magento:2.4.0:*:*:*:commerce:*:*:*
magento magento 2.4.0 cpe:2.3:a:magento:magento:2.4.0:*:*:*:open_source:*:*:*

References for CVE-2020-24403

cvelogic Threat Intelligence