What is CVE-2020-26564?

CVE-2020-26564 is a medium-severity vulnerability in Objectplanet Opinio, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 6.5/10. Published 2021-07-31.

How severe is CVE-2020-26564?

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

Is CVE-2020-26564 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XXE in Objectplanet Opinio

CVE-2020-26564

ObjectPlanet Opinio before 7.15 allows XXE attacks via three steps: modify a .css file to have <!ENTITY content, create a .xml file for a generic survey template (containing a link to this .css file), and import this .xml file at the surve…

Vulnerability class: XXE (XML External Entity)

EPSS: 0.011 (62.6th 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

Objectplanet Opinio
N/a — versions n/a

Weakness classification (CWE)

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

Public proof-of-concept exploits

ARPSyndicate/cvemon

References

cve@mitre.org (Exploit, VDB Entry, Third Party Advisory, x_refsource_MISC)
cve@mitre.org (x_refsource_CONFIRM, Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2020-26564?: CVE-2020-26564 is a medium-severity vulnerability in Objectplanet Opinio, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 6.5/10. Published 2021-07-31.
How severe is CVE-2020-26564?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2020-26564 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.