Vulnerability · Published May 21, 2021 · Assigned by mitre
CVE-2021-33512
Medium 5.4
In plain English
A medium-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 0.7% (higher than 52% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)5.4Medium
Exploit odds (30 days)0.7%top 47.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Plone through 5.2.4 allows stored XSS attacks (by a Contributor) by uploading an SVG or HTML document.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| PyPI | plone | no fix listed | GHSA-hm2h-f456-6j88 |
| PyPI | plone | 5.2.5 | PYSEC-2021-84 |
Affected products (as reported)
References
- https://plone.org/security/hotfix/20210518/stored-xss-from-file-upload-svg-html x_refsource_MISC
- [oss-security] 20210522 Re: Plone security hotfix 20210518 mailing-list, x_refsource_MLIST