What is CVE-2021-3312?

CVE-2021-3312 is a medium-severity vulnerability in Alkacon Opencms, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 6.5/10. Published 2021-10-08.

How severe is CVE-2021-3312?

Medium severity. CVSS v3 base score is 6.5 out of 10.

XXE in Alkacon Opencms

CVE-2021-3312

An XML external entity (XXE) vulnerability in Alkacon OpenCms 11.0, 11.0.1 and 11.0.2 allows remote authenticated users with edit privileges to exfiltrate files from the server's file system by uploading a crafted SVG document.

Vulnerability class: XXE (XML External Entity)

EPSS: 0.012 (66.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Alkacon Opencms — versions 11.0, 11.0.1, 11.0.2
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, Release Notes)
cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC, Issue Tracking)

Frequently asked questions

What is CVE-2021-3312?: CVE-2021-3312 is a medium-severity vulnerability in Alkacon Opencms, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 6.5/10. Published 2021-10-08.
How severe is CVE-2021-3312?: Medium severity. CVSS v3 base score is 6.5 out of 10.