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Fencer Intel
medium 4.8

CVE-2019-20438 json

An issue was discovered in WSO2 API Manager 2.6.0.

published 6y ago modified 4mo ago also EUVD-2019-10986

cvss
4.8
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 56%
public exploits
0
none known

Summary

An issue was discovered in WSO2 API Manager 2.6.0. A potential stored Cross-Site Scripting (XSS) vulnerability has been identified in the inline API documentation editor page of the API Publisher.

Is CVE-2019-20438 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Exploit prediction

0.80% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • cybersecurityworks.com https://cybersecurityworks.com/zerodays/cve-2019-20438-wso2.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.0 4.8 CVSS:3.0/AC:L/AV:N/A:N/C:L/I:L/PR:H/S:C/UI:R
NVD 3.1 4.8 CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
CNA 3.0 4.8 CVSS:3.0/AV:N/AC:L/PR:H/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

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.