What is CVE-2018-1000823?

CVE-2018-1000823 is a critical-severity vulnerability in Exist-db Exist, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 10.0/10. Published 2018-12-20.

How severe is CVE-2018-1000823?

Critical severity. CVSS v3 base score is 10.0 out of 10.

XXE in Exist-db Exist

CVE-2018-1000823

exist version <= 5.0.0-RC4 contains a XML External Entity (XXE) vulnerability in XML Parser for REST Server that can result in Disclosure of confidential data, denial of service, SSRF, port scanning.

Vulnerability class: XXE (XML External Entity)

EPSS: 0.019 (76.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

Affected products

Exist-db Exist — versions 5.0.0
N/a — versions n/a

Weakness classification (CWE)

CWE-611 — Improper Restriction of XML External Entity Reference (XXE)

References

cve@mitre.org (Third Party Advisory, x_refsource_MISC)
cve@mitre.org (Third Party Advisory, x_refsource_MISC, Issue Tracking)

Frequently asked questions

What is CVE-2018-1000823?: CVE-2018-1000823 is a critical-severity vulnerability in Exist-db Exist, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 10.0/10. Published 2018-12-20.
How severe is CVE-2018-1000823?: Critical severity. CVSS v3 base score is 10.0 out of 10.