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On CISA KEVCritical

CVE-2020-24589API Manager XXE

The Management Console in WSO2 API Manager through 3.1.0 and API Microgateway 2.2.0 allows XML External Entity injection (XXE) attacks.

Published Aug 21, 2020 · Updated Oct 20, 2026

Key Facts

Patch immediately
  • CVE-2020-24589 is a critical-severity vulnerability (CVSS 9.1 v3.1) affecting API Manager (Wso2), API Microgateway (Wso2).
  • It is exploited in the wild, listed in CIRCL KEV, Industry KEV feed since Oct 14, 2023. No public exploit code is known.
  • EPSS estimates a 26% probability of exploitation in the next 30 days.
  • Fixed versions are available, including API Manager <=3.1.0, API Manager 3.1.0.
  • Brandefense priority: patch immediately, because it is listed as exploited in the wild.

Scores

CVSS v3.1

9.1

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

EPSS (30-day exploit likelihood)

26%

Higher than 98.0% of all scored CVEs

Exploit maturity

Exploited (KEV)

ATLAS score

48/100

Publication score, see How it works

Exploitation Verdict

KEV listed

Oct 14, 2023

1149 days after publication

Federal due date

None

No federal due date

Ransomware use

Not reported

Attributed actors

None named

Exploit & Defence Guidance

Exploit maturity

Exploited (KEV)

Public exploit code

0

Proof-of-concept links

In-the-wild evidence

10

Reports of active use

Description

The Management Console in WSO2 API Manager through 3.1.0 and API Microgateway 2.2.0 allows XML External Entity injection (XXE) attacks.

Known-Exploited Catalog Listings

CatalogAddedRemediation dueRansomware use
CIRCL KEVOct 14, 2023n/aNot reported
Industry KEV feedOct 14, 2023n/aNot reported

Affected Products

2 affected entries in total
ProductAffected versionsFixed in
API ManagerWso2See advisory3.1.0
API MicrogatewayWso22.2.0n/a

Patched Releases

API Manager

<=3.1.0

Timeline

  1. Publicly disclosed

    Aug 21, 2020

  2. Added to CIRCL KEV

    Oct 14, 2023

  3. Added to Industry KEV feed

    Oct 14, 2023

  4. Last updated

    Oct 20, 2026

Weakness Type

  • CWE-611 Improper Restriction of XML External Entity Reference

FAQ

Common Questions.

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More vulnerabilities

Figures as of Oct 24, 2026. Compiled by Brandefense technologies from public vulnerability catalogs; scoring as described in How it works.

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