HOMEVULNERABILITIESCVE-2020-26564
MEDIUM

CVE-2020-26564

CWE-611Published: July 31, 2021· Updated: Jun 17, 2026

6.5
CVSS v3.1

Official Description

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.

NVD Source

Technical Analysis

CVE-2020-26564 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 6.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected Vendors & Products

objectplanet1 product(s)
opinio
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://packetstormsecurity.com/files/163707/ObjectPlanet-Opinio-7.13-7.14-XML-Injection.html
ADVISORYhttps://www.objectplanet.com/opinio/changelog.html
ADVISORYhttps://packetstormsecurity.com/files/163707/ObjectPlanet-Opinio-7.13-7.14-XML-Injection.html
ADVISORYhttps://www.objectplanet.com/opinio/changelog.html

All References (4)

→
https://packetstormsecurity.com/files/163707/ObjectPlanet-Opinio-7.13-7.14-XML-Injection.htmlExploit · Third Party Advisory · VDB Entry
→
https://www.objectplanet.com/opinio/changelog.htmlRelease Notes · Vendor Advisory
→
https://packetstormsecurity.com/files/163707/ObjectPlanet-Opinio-7.13-7.14-XML-Injection.htmlExploit · Third Party Advisory · VDB Entry
→
https://www.objectplanet.com/opinio/changelog.htmlRelease Notes · Vendor Advisory

Quick Facts

CVE IDCVE-2020-26564
CVSS Score6.5 / 10
SeverityMEDIUM
WeaknessCWE-611
CISA KEVNo
Affected1 vendor(s)
PublishedJul 31, 2021

Related CVEs (CWE-611)

CVE-2018-1000652
10.0
CVE-2018-1000651
10.0
CVE-2018-1000644
10.0
CVE-2023-38490
10.0
CVE-2019-14678
10.0
CVE-2017-7664
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2020-26564 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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