Read the docs
TI-2020-16943 Aliases CVE-2020-27885GHSA-6j36-f5fg-gcmx

Cross-Site Scripting (XSS) vulnerability on WSO2 API Manager 3.1.0.

Priority LOW 29CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

Cross-Site Scripting (XSS) vulnerability on WSO2 API Manager 3.1.0. By exploiting a Cross-site scripting vulnerability the attacker can hijack a logged-in user’s session by stealing cookies which means that a malicious hacker can change the logged-in user’s password and invalidate the session of the victim while the hacker maintains access.

Why it matters now

EPSS 0.01094 65th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:wso2:api_manager:3.1.0:*:*:*:*:*:*:*3.1.0VulnerableWSO2
  • cpe:2.3:a:wso2:api_manager:3.1.0:*:*:*:*:*:*:* Versions 3.1.0 Vulnerable ·WSO2

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-27885
  2. 2026-10-03 Alias added: GHSA-6j36-f5fg-gcmx

References

Exploit 1

Advisory 1

  • TI-2026-04755 Authentication Bypass via JWT Algorithm Mismatch in Multiple WSO2 Products Allows Account Takeover KEVCVSS 3.1CRITICAL 10.0
  • TI-2022-11928 Certain WSO2 products allow unrestricted file upload with resultant remote code execution. KEVCVSS 3.1CRITICAL 9.8
  • TI-2020-15069 The Management Console in WSO2 API Manager through 3.1.0 and API Microgateway 2.2.0… CVSS 3.1CRITICAL 9.1
  • TI-2023-15163 A reflected cross-site scripting (XSS) vulnerability in /authenticationendpoint/login.do… CVSS 3.1MEDIUM 6.1
  • TI-2022-12002 A reflected XSS issue exists in the Management Console of several WSO2 products. CVSS 3.1MEDIUM 6.1
  • TI-2025-13722 Account Takeover via Conditional Authentication Script Logic in Multiple WSO2 Products CVSS 3.1CRITICAL 9.4
See all 94 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences