An issue was discovered in WSO2 API Manager 2.1.0 and 2.6.0.

published 2019-03-18 7y ago modified 2026-06-17 4mo ago also EUVD-2018-13281

cvss: 5.4; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.0%; EPSS 1.0% chance of exploitation in 30 days, percentile 62%
public exploits: 0; none known

An issue was discovered in WSO2 API Manager 2.1.0 and 2.6.0. A DOM-based XSS exists in the store part of the product.

Patch / fix

links 3

github.com/wso2/carbon-apimgt#5844 pull request
wso2.com/security-patch-releases/api-manager advisory
excellium-services.com/cert-xlm-advisory/cve-2018-20736/ advisory

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Exploit prediction

0.98% chance of exploitation in the next 30 days, higher than 62% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	3.0	5.4	CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
NVD	2.0	3.5	AV:N/AC:M/Au:S/C:N/I:P/A:N

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

github.com /wso2/carbon-apimgt/pull/5844/files
patch, third-party-advisory
wso2.com /security-patch-releases/api-manager
patch, vendor-advisory
excellium-services.com /cert-xlm-advisory/cve-2018-20736/
patch, third-party-advisory

Sources

CVE List CVE-2018-20736
NVD CVE-2018-20736

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