CVE-2020-28734
mediumpriority · track · 36EPSS 0.015 · 73 %ileEUUSEPSS · scored 2026-10-27
Plone before 5.2.3 allows XXE attacks via a feature that is explicitly only available to the Manager role.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.5–8.8
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (7)
Products and version ranges known to be affected.
advisories (6)
Vendor and ecosystem advisories describing this.
- GHSA-wq6x-g685-w5f2Improper Restriction of XML External Entity Reference in Plone2021-04-07ghsa · osvUS
Plone before 5.2.3 allows XXE attacks via a feature that is explicitly only available to the Manager role.
- PYSEC-2020-2462020-12-30vendor · osvUS
Plone before 5.2.3 allows XXE attacks via a feature that is explicitly only available to the Manager role.
- PYSEC-2026-2880Improper Restriction of XML External Entity Reference in Plone2026-07-09vendor · osvUS
Plone before 5.2.3 allows XXE attacks via a feature that is explicitly only available to the Manager role.
- PYSEC-2026-2883Improper Restriction of XML External Entity Reference in Plone2026-07-09vendor · osvUS
Plone before 5.2.3 allows XXE attacks via a feature that is explicitly only available to the Manager role.
- PYSEC-2026-2886Improper Restriction of XML External Entity Reference in Plone2026-07-09vendor · osvUS
Plone before 5.2.3 allows XXE attacks via a feature that is explicitly only available to the Manager role.
- PYSEC-2026-736Improper Restriction of XML External Entity Reference in Plone2026-07-02vendor · osvUS
Plone before 5.2.3 allows XXE attacks via a feature that is explicitly only available to the Manager role.
also known as (14)
Other names and identifiers for this entity.
- CNNVD-202012-1818cnnvd
- EUVD-2020-0140enisa_euvd
- GHSA-wq6x-g685-w5f2enisa_euvd
- PYSEC-2020-246enisa_euvd
- PYSEC-2026-2880enisa_euvd
- PYSEC-2026-2883enisa_euvd
- PYSEC-2026-2886enisa_euvd
- PYSEC-2026-736enisa_euvd
- GHSA-wq6x-g685-w5f2osv
- PYSEC-2020-246osv
- PYSEC-2026-2880osv
- PYSEC-2026-2883osv
- PYSEC-2026-2886osv
- PYSEC-2026-736osv
sources
Which sources assert this record, and when.
references (10)
External citations — patches, advisories, analysis.
- https://dist.plone.org/release/5.2.3/RELEASE-NOTES.txtcnnvd
- https://github.com/plone/Products.CMFPlone/issues/3209cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2020-28734cnnvd
- https://www.misakikata.com/codes/plone/python-en.htmlcnnvd
- https://dist.plone.org/release/5.2.3/RELEASE-NOTES.txtenisa_euvd
- https://github.com/plone/Products.CMFPlone/issues/3209enisa_euvd
- https://www.misakikata.com/codes/plone/python-en.htmlenisa_euvd
- https://dist.plone.org/release/5.2.3/RELEASE-NOTES.txtRelease NotesVendor Advisorynvd
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