Vulnerability · Published May 21, 2021 · Assigned by mitre
CVE-2021-33511
High 7.5
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 1.2% (higher than 67% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.5High
Exploit odds (30 days)1.2%top 32.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Plone though 5.2.4 allows SSRF via the lxml parser. This affects Diazo themes, Dexterity TTW schemas, and modeleditors in plone.app.theming, plone.app.dexterity, and plone.supermodel.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| PyPI | plone | no fix listed | GHSA-gc9g-67cq-p7v4 |
| PyPI | plone | 5.2.5 | PYSEC-2021-83 |
Affected products (as reported)
References
- https://plone.org/security/hotfix/20210518/server-side-request-forgery-via-lxml-parser x_refsource_MISC
- [oss-security] 20210522 Re: Plone security hotfix 20210518 mailing-list, x_refsource_MLIST