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 survey/admin/folderSurvey.do?action=viewImportSurvey['importFile'] URI. The XXE can then be triggered at a admin/preview.do?action=previewSurvey&surveyId= URI.
Vulnerability class: XXE (XML External Entity)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.011 (65.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 65.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- packetstormsecurity.com/files/163707/ObjectPlanet-Opinio-7.13-7.14-XML-Injectio… (Exploit, VDB Entry, Third Party Advisory)
- www.objectplanet.com/opinio/changelog.html (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.