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CVE-2026-18800VulnerabilityPublished

When an Event Publisher output adapter is configured with properties that are irrelevant to its function, the affected

Source GCVE Database

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Authoritative record:CVE-2026-18800· Medium 4.4

Not known to be exploited · CVSS 4.4 Medium · fixed in 4.6.0.13 : update WSO2 API Manager when convenient.

Data as of 2 Nov 2026, 13:31 UTC

CVSS 3.1 base score
4.4Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (WSO2)CVSS 3.14.4
Patch
Available – fixed in 4.6.0.13, 4.5.0.49, 4.4.0.64 +23
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 2 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2 Nov 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
WSO2WSO2 API ManagerAffected
  • >=4.6.0 <4.6.0.13
Fixed in
  • 4.6.0.13
WSO2WSO2 API ManagerAffected
  • >=4.5.0 <4.5.0.49
Fixed in
  • 4.5.0.49
WSO2WSO2 API ManagerAffected
  • >=4.4.0 <4.4.0.64
Fixed in
  • 4.4.0.64
WSO2WSO2 API ManagerAffected
  • >=4.3.0 <4.3.0.100
Fixed in
  • 4.3.0.100
WSO2WSO2 API ManagerAffected
  • >=4.2.0 <4.2.0.189
Fixed in
  • 4.2.0.189
WSO2WSO2 API ManagerAffected
  • >=4.1.0 <4.1.0.249
Fixed in
  • 4.1.0.249

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Mitigation involves ensuring that Event Publisher output adapters are configured correctly to avoid logging irrelevant or sensitive properties. Restrict access to 'wso2carbon' log files to trusted personnel only to prevent unauthorized retrieval of sensitive information.

Description

This vulnerability involves the logging of irrelevant properties by an Event Publisher output adapter, which can include sensitive user credentials or confidential information if misconfigured. An attacker with access to the 'wso2carbon' log files could extract this sensitive data, potentially leading to unauthorized access. The issue is due to improper handling of configuration properties in logging.

References

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