Vulnerability · Published Dec 30, 2020 · Assigned by mitre
CVE-2020-28734
High 8.8
In plain English
A high-severity security flaw in the plone package (PyPI). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.5% (higher than 74% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)8.8High
Exploit odds (30 days)1.5%top 26.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Plone before 5.2.3 allows XXE attacks via a feature that is explicitly only available to the Manager role.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| PyPI | plone | 5.2.3 | GHSA-wq6x-g685-w5f2 |
| PyPI | plone | 5.2.3 | PYSEC-2020-246 |
| PyPI | plone-app-dexterity | 2.6.8 | PYSEC-2026-2880 |
| PyPI | plone-app-dexterity | 2.6.8 | GHSA-wq6x-g685-w5f2 |
| PyPI | plone-app-event | 3.2.10 | GHSA-wq6x-g685-w5f2 |
| PyPI | plone-app-event | 3.2.10 | PYSEC-2026-2883 |
| PyPI | plone-app-theming | 4.1.6 | GHSA-wq6x-g685-w5f2 |
| PyPI | plone-app-theming | 4.1.6 | PYSEC-2026-2886 |
| PyPI | plone-supermodel | 1.6.3 | GHSA-wq6x-g685-w5f2 |
| PyPI | plone-supermodel | 1.6.3 | PYSEC-2026-736 |
Affected products (as reported)
References
- https://www.misakikata.com/codes/plone/python-en.html x_refsource_MISC
- https://github.com/plone/Products.CMFPlone/issues/3209 x_refsource_MISC
- https://dist.plone.org/release/5.2.3/RELEASE-NOTES.txt x_refsource_CONFIRM