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CVE-2020-13883

23
FAUCET Score

CVE-2020-13883 describes an XML External Entity (XXE) vulnerability in WSO2 API Manager (3.0.0 and earlier), WSO2 API Microgateway (2.2.0), and WSO2 IS as Key Manager (5.9.0 and earlier) during the addition or update of a Lifecycle via the Management Console. This medium-severity vulnerability (CVSS 6.7) has a low attack complexity and requires high privileges, but if exploited, it could lead to significant confidentiality, integrity, and availability impacts. There is currently no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.0.0CPE matchmatch criteria
cpe:2.3:a:wso2:api_manager:*:*:*:*:*:*:*:*
2.2.0CPE matchmatch criteria
cpe:2.3:a:wso2:api_microgateway:2.2.0:*:*:*:*:*:*:*
<= 5.9.0CPE matchmatch criteria
cpe:2.3:a:wso2:identity_server_as_key_manager:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.5MEDIUM

CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.2
Impact Score
4.2
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.80%
Probability of exploitation in next 30 days
EPSS Percentile
52.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0080 is in the 54th percentile among its peer group of 3,563 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

docs.wso2.com / display/Security/Security+Advisory+WSO2-2020-0727
Vendor Advisory